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Words and phrases whose definition contains large:   (4305 results)

1 letter:
.

2 letters:
cu, m2

3 letters:
afp, bag, cat, cow, cup, dry, eel, elk, emu, fat, gnu, gun, hit, jug, kea, ldl, log, lot, nth, nut, owl, pad, pia, pot, sea, sub, sum, taw, tub, tun, urn, vat, wad, yak, zep

4 letters:
alps, argo, army, arum, bale, bath, berg, book, bowl, bulk, bull, burl, bush, butt, calf, cero, cisc, city, cleg, cola, corn, cusk, dalo, deal, deep, dita, draw, fell, fish, gaff, gobs, goby, golf, guan, gulp, haik, hall, head, heap, heft, hero, hide, hulk, hull, hunk, ibex, ilex, jazz, kaki, kelp, khan, kiln, kola, land, leek, lien, limo, lion, load, lodz, loft, loir, loom, loon, lots, lump, main, many, mass, mess, mile, milo, mint, neem, opah, orca, oryx, paca, pack, palm, park, peal, peck, pecs, pile, pour, puka, puma, raft, raid, ream, rich, roll, rosa, sail, sida, size, skep, slew, spew, swig, tack, tank, taro, teem, teju, test, tidy, tome, tons, topi, tuna, ugli, urus, vldl, vote, wads, wain, wave, wide, wimp, wood, word, yeti, zebu

5 letters:
addax, ample, aorta, ardea, arena, arere, argus, aroid, bantu, basin, baste, batch, beech, bison, block, bolus, bongo, brake, briar, brier, briny, broad, bruin, bulky, busty, buxom, canna, capiz, carex, cargo, carya, cecum, cello, cetus, chard, cheek, chest, cleek, clegg, cobia, colon, conch, cover, crane, crash, crowd, curvy, cypre, diver, dixie, dozer, draft, drink, eagle, earth, eland, eruct, ficus, flock, flood, floor, folio, fomes, foyer, fusee, fuzee, giant, glute, golan, great, haick, harpy, heaps, heavy, hefty, hoagy, hooks, hound, house, indri, jorum, kapok, kiaat, laver, lemur, light, lilac, liner, links, liver, loads, lobby, lorry, lotte, lotus, luffa, macro, maize, mango, manse, manta, marri, mazer, mealy, mensa, mesua, moose, munch, musth, ocean, opepe, orang, organ, orris, ounce, oxeye, panda, panga, pansy, pavis, pekan, pewit, piles, pinus, piper, plant, point, pylon, queen, rafts, rally, ranch, range, raven, river, robin, roble, rubus, salix, saman, samba, sandy, scads, scoop, score, scute, seine, serai, shear, sheet, shell, shire, shoal, short, sight, siris, sisal, skate, slews, slide, small, snook, solan, sonsy, sound, spate, stack, stage, steak, store, stork, stout, super, surge, swarm, swede, swill, takin, tapir, teiid, tiger, torsk, tower, toyon, trunk, tunny, vanda, varan, viola, virgo, wahoo, wedge, whale, whelk, woods, wrack, zaman

6 letters:
abound, achras, adelie, albuca, allium, amazon, ananas, angler, aramus, argosy, armada, augite, baboon, banana, beaver, beetle, bigeye, bigger, billow, billyo, bletia, blower, blu-82, bomber, bonduc, bosomy, brahma, briard, bright, briony, bryony, bundle, burner, bushel, caecum, calash, camion, cannon, canvas, carack, carboy, castle, cavern, caviar, cd-rom, celtis, chabad, chesty, chicot, cicada, cicala, citron, clusia, coarse, cochin, cohune, conger, cooter, copper, cougar, crambe, curlew, cuttle, dallas, danaid, dobson, dorado, double, dozens, duffel, duffle, dugout, earwig, enough, estate, exarch, exodus, facula, fisher, flagon, fleshy, forest, frijol, gadfly, galago, galley, gannet, gavial, goanna, godwit, goodly, gopher, goujon, grainy, gritty, ground, gulper, hangar, hatful, hawser, hearst, heaume, hegira, hejira, hoagie, hooter, hornet, ibadan, icecap, iguana, iguazu, indris, infest, invade, ipidae, jabiru, jaguar, jobber, jupati, jupaty, kentan, kettle, killer, kurrat, lading, larger, legion, lidded, lobata, loquat, louvar, lumper, madake, madnep, magnum, maiger, maigre, maikoa, mallet, malope, mantid, mantis, marlin, marrow, mekong, mickle, mobcap, modest, molara, mostly, muckle, mudcat, myriad, nessie, nilgai, obeche, obechi, onager, oodles, osmund, osprey, palace, pallas, palmae, papaia, papaya, pasang, pavise, pawpaw, payena, peewit, permit, phaius, phylum, pipile, pisces, pitsaw, plague, plaice, plenty, plover, pluton, pomelo, pongid, pteris, punkah, python, quahog, quasar, ramify, region, remora, rummer, sallow, salmon, salver, samson, saurel, scampi, school, scores, scoter, screen, serval, shears, shindy, sonsie, sorrel, souari, soweto, sphinx, spiral, spleen, spread, stacks, stream, sunhat, suslik, taipan, tangor, tarpon, tautog, taxcut, throng, thymus, tollon, toucan, tourer, tucana, turaco, turbot, tureen, turkey, turnip, virago, walrus, wapiti, wieldy, willet, zamang

7 letters:
abalone, airdock, apatura, arishth, armoire, aurochs, avocado, backlog, balaton, balkans, balloon, bandana, banging, bathtub, bigfoot, biggish, big cat, billyoh, bloater, blowfly, blow up, blubber, bluefin, bobtail, bologna, bomarea, bombard, bonfire, booyong, borough, boulder, bowhead, bowlder, bracken, brahman, brahmin, brasier, brazier, bricole, brinjal, broadax, bruiser, buckeye, buffalo, bugbane, bulldog, bullpen, bulrush, bur oak, bustard, buttock, caisson, caldera, caldron, caleche, canvass, capital, caribou, carrack, carrier, carrizo, caspian, catalpa, catfish, cavalla, caviare, charity, chinook, chopper, cleanup, cleaver, coconut, colonic, copious, corypha, cow oak, crapaud, cruiser, cyclops, cytisus, dasheen, deltoid, diffuse, dik-dik, diptera, dishpan, dolphin, dorking, draught, drydock, durante, elkwood, emperor, enfeoff, enlarge, epergne, epstein, escolar, fantasy, fearful, finback, flatbed, flattop, fogbank, footman, fortune, freight, friable, frijole, fringed, gadidae, galleon, gemsbok, geoduck, girasol, gluteus, gobbler, goliath, goodish, goshawk, gp bomb, grampus, grandly, griffon, grinder, growler, gudgeon, gulping, guzzler, halcyon, halibut, hamster, harpoon, hemlock, hipbone, hitting, hogfish, hot tub, iceberg, ice age, ice cap, iguassu, imbauba, io moth, jacuzzi, jawfish, jewfish, katydid, kennedy, ketalar, killing, lapwing, largely, largish, leopard, lewisia, loading, lorchel, machete, magnify, mailing, malaxis, mammoth, mangold, mansion, many aa, marabou, maranta, margosa, markhor, marmite, marquee, matchet, maulers, may bug, megabat, mesquit, mikania, minster, monarch, monitor, monster, mullein, musk ox, mylodon, nailrod, nosh-up, nylghai, nylghau, oceania, odonate, oilfish, olearia, opuntia, ormosia, outgrow, outsize, overrun, ox-eyed, oxheart, painter, pannier, panther, paprika, paunchy, payload, payroll, peacock, peafowl, pealing, pelican, phaeton, phasmid, phoenix, pimento, pintado, pin oak, piquant, pirogue, plagued, platter, pluteus, polymer, popular, protein, provide, pummelo, pumpkin, quahaug, quetzal, rake in, rattail, redfish, red gum, roaster, rolling, rotunda, russula, saguaro, sahuaro, sandpit, sassaby, sawbill, sawmill, saw log, scooter, scorpio, sculpin, sea cow, section, selloff, shindig, shipway, shooter, siamang, sigmoid, sizable, snapper, soldier, soursop, souslik, stachys, stadium, stratus, stretch, strymon, suppose, syringa, tangelo, tankard, teem in, thirsty, timpani, torpedo, touraco, tractor, trailer, trivial, tuatara, turacou, turakoo, turnout, tympani, vanilla, volumed, vulture, walk-in, warthog, zapotec, zillion

8 letters:
abrocome, abstract, acanthus, adjutant, afrasian, ageratum, aguacate, airedale, air mass, albacore, alliance, allmouth, alocasia, alsatian, anaconda, anteroom, antibody, ant bear, apolemia, arbalest, arbalist, argemone, armyworm, atropine, atypical, at large, balefire, ballista, ballroom, bandanna, behemoth, berberis, big band, big blue, big game, billions, billy-ho, blow fly, bluebell, blue cat, boarfish, broadaxe, bullhead, bullrush, bull bay, burr oak, bushbaby, cachalot, calabash, calisaya, camassia, carousel, cash bar, catapult, cataract, caucasia, caucasus, cauldron, cecropia, cetacean, chickpea, chunking, cinnabar, claymore, clitoria, cocoanut, coliseum, collapse, colossus, conenose, connarus, cortland, craniate, crawfish, crayfish, crotalus, curassow, curtisia, decimate, demijohn, dinornis, division, doberman, doornail, dravidic, drynaria, dry dock, eggplant, elaphure, elk-wood, emmental, emporium, encyclia, enormous, eryngium, erysimum, extended, fabaceae, fan fern, federita, feterita, figeater, flamingo, flathead, forehead, galactic, garbanzo, gardenia, gemsbuck, gigantic, gnu goat, god tree, granular, greeneye, guzzling, hacienda, hawfinch, hedgehog, heedless, hercules, hoarding, hogshead, homeless, honeydew, honolulu, hornbill, horsefly, huang he, humpback, hwang ho, ice mass, ice pack, indiaman, infested, involved, jeroboam, jetliner, jillions, jug wine, jumbojet, june bug, kangaroo, ketamine, kill off, kingbird, kingfish, kola nut, komondor, ku-chiku, labrador, lachaise, landmass, landslip, lashings, leapfrog, leonberg, macrotus, mahimahi, mangabey, mangonel, many ana, marabout, markhoor, massacre, masseter, mattress, maximise, maximize, may lily, megalith, megapode, mesquite, microbat, milk can, millions, moneyman, monkfish, moonfish, mountain, mow down, mulloway, mushroom, nightjar, nim tree, numerous, occluded, oceanica, old maid, ordinary, ordnance, oriented, overflow, overgrow, pack ice, pancreas, parkland, parmelia, pavilion, pectoral, pereskia, phantasy, pheasant, pimiento, pitahaya, plantago, plastron, platanus, plum-yew, plumping, polyuria, poor boy, potbound, puccinia, puffbird, quantity, red drum, red tide, reedmace, reindeer, rock elm, rosaceae, rosefish, roughleg, rutabaga, sadleria, sage hen, sailfish, salmwood, sandarac, sauropod, scallion, schooner, sciaenid, scorpius, scullery, seahorse, searcher, sea cole, sea duck, sea kale, sea lion, sea wolf, sesbania, shaddock, shipment, shoebill, shoebird, silicone, silkworm, siloxane, sirenian, sizeable, slop jar, spacious, spew out, sphecius, springer, stapelia, stingray, strapper, stunning, sturgeon, swilling, symphony, tamanoir, tamarind, teucrium, thalamus, thevetia, the alps, thrasher, thresher, thumping, tidy sum, tithonia, turmeric, tympanum, uraturia, waterdog, whistler, whopping, wig tree, wipe out, wolffish, wood-rat, wood rat, wrymouth, yam bean, yule log, zea mays, zeppelin, zillions

9 letters:
abound in, albatross, allamanda, antheraea, arachnida, araucaria, arbovirus, arecaceae, army base, artichoke, artillery, ascaridae, astrocyte, astroglia, attracter, attractor, aubergine, avalanche, a zillion, bandwagon, barn door, barracuda, bass drum, batholite, batholith, battalion, bead tree, bed sheet, big board, big bucks, big money, billboard, blackfish, black cat, black oak, blennioid, blind gut, blue bull, boarhound, bolt down, bombardon, brown oak, bucktooth, bulk mail, bulldozer, burrawong, bush baby, candlenut, capacious, carnivore, carnosaur, carrousel, carry off, casserole, cassowary, catamount, cathartid, cathedral, ceilinged, charolais, cherimoya, coach dog, cofferdam, coltsfoot, concourse, conestoga, container, continent, coon bear, corchorus, cormorant, coscoroba, cosmotron, courbaril, cow shark, crane fly, crocodile, cupflower, dalbergia, dalmatian, davenport, deerhound, derringer, devilfish, dita bark, dobsonfly, dormitory, dorm room, dravidian, drift net, dumb cane, ear-shell, eliminate, emmenthal, engrossed, epilobium, eradicate, euphorbia, extensive, fan dance, feverroot, financier, fin whale, fireplace, fire hose, fish duck, fish hawk, fordhooks, fox shark, fruit bat, fullerene, gasometer, gerfalcon, ghostfish, gladiolus, gladstone, glis glis, gobble up, goldeneye, gold rush, golf game, good deal, goora nut, goosefish, granulose, gran casa, great ape, great auk, grenadier, grindelia, guanabana, gyrfalcon, hackberry, hadrosaur, hamadryad, heart pea, heathfowl, hedgefund, heftiness, heliopsis, heracleum, heritiera, hieracium, hollyhock, homaridae, home-farm, horsebean, horse fly, hound dog, humongous, hyena dog, hypericum, ice field, incursion, iridaceae, ivorybill, jackknife, jacksmelt, jellyfish, jumbo jet, kalumpang, king-size, king crab, king fern, labrocyte, lactarius, lagomorph, lake mead, landgrave, landslide, langouste, large cap, leaf beet, lima bean, limousine, liverpool, lophiidae, lubavitch, luna moth, macrocyte, macroglia, mad apple, magnitude, mainframe, main deck, majuscule, man-eater, manicotti, manilkara, manta ray, mastocyte, mast cell, mausoleum, medallion, medinilla, megabucks, melastoma, merganser, mess hall, middleman, mobulidae, mollymawk, monkeypod, monoblast, monstrous, montezuma, moosewood, mud puppy, multitude, musk duck, mustachio, naval gun, neem tree, nephrosis, noctiluca, nonnative, nummulite, nurse log, nymphalid, onopordon, onopordum, open-plan, operation, ophiuchus, orangutan, orpington, overlarge, ovis poli, oxytropis, palaquium, palmaceae, palm tree, peireskia, pemphigus, peninsula, penstemon, phase iii, pineapple, pipe vine, plurality, polyester, pond lily, pond pine, porcupine, pot metal, pristidae, proboscis, prosimian, pseudoryx, psithyrus, ptarmigan, pullulate, pulmonata, quamassia, rag gourd, rain tree, red alder, red beech, red cedar, red giant, reed mace, reflector, reservoir, residence, resonance, rhipsalis, rootbound, saddlebag, sapodilla, sarcosome, sasquatch, saturniid, saxifraga, schnauzer, sea eagle, sea horse, sea mouse, sea otter, sea raven, sea wrack, segregate, selection, sheatfish, sheldrake, shovel in, sigmoidal, silky elm, slaughter, slop pail, snakefish, sour dock, spearfish, spinnaker, sprigtail, staghound, stanhopea, stillroom, stovepipe, submarine, sugarloaf, sumptuary, sunbonnet, sunflower, swamp oak, swordfish, tamarindo, tanacetum, tank farm, tarantula, technical, teleostei, terrietia, too large, trachodon, trebuchet, trebucket, tree fern, trillions, trumpeter, urceolate, vase-fine, vase vine, vena cava, vestibule, walloping, wall fern, waterbuck, water bug, water elm, water rat, water yam, waxflower, wheel bug, whirligig, white elm, white sea, white yam, wholesale, whole lot, wild leek, wolf fish, yorkshire, zapotecan

10 letters:
abdominous, africander, air potato, amaranthus, amatungulu, andrenidae, anglerfish, annihilate, arborvirus, ascomycota, aspidistra, astragalus, astrocytic, astronomic, attraction, bain-marie, bald eagle, barbecuing, barramunda, barramundi, barred owl, basal vein, basic slag, basket oak, bath towel, battleship, beach ball, beech tree, beer glass, big bedbug, bitterwood, blackberry, blacksnake, black pine, black swan, bloodhound, broad-bean, broad bean, brown bear, brown pine, bull-snake, bull snake, burhinidae, buttonwood, canna lily, cape tulip, capitalist, capra ibex, caracolito, carangidae, carib wood, caricaceae, casuaridae, cat's-tail, ceiba tree, centerfold, centrefold, centrosema, chatelaine, cherimolla, chile pine, china rose, coarseness, cockchafer, colic vein, collimator, commodious, common box, common oak, coneflower, conger eel, convenient, convention, corn snake, crt screen, ctenizidae, curvaceous, cuttlefish, dall sheep, dance hall, decimation, democratic, department, devil lily, devil tree, dipladenia, dipteronia, ditch fern, ditch reed, dobson fly, drop cloth, drop forge, drop press, dryopteris, duffel bag, duffle bag, dune buggy, dust cover, dust sheet, emmentaler, epidendrum, eubacteria, eupatorium, eurypterid, everglades, extinguish, fairy bell, farsighted, felis onca, fever tree, field bean, filmy fern, fingerroot, fire truck, fisher cat, fish eagle, fish steak, flycatcher, flying fox, garden egg, gas holder, genus aloe, genus cola, genus hoya, genus ilex, genus iris, genus rhea, genus rosa, genus sida, giant crab, giant fern, giant reed, giant star, giant taro, gnaphalium, goatsucker, goldenseal, golf links, graininess, granadilla, grapefruit, grass tree, great dane, great deal, great skua, greediness, greenshank, gros point, hartebeest, hedge fund, helianthus, hellbender, homeopathy, hoover dam, horned owl, horseleech, jackrabbit, jawbreaker, jerboa rat, jet bridge, jimsonweed, jonah crab, jumby bean, jumby tree, j particle, kettledrum, king-sized, kingfisher, king cobra, lake trout, lancetfish, largemouth, laurel oak, lizardfish, loaf sugar, loganberry, loggerhead, lomogramma, loving cup, macrophage, macrozamia, maidenhair, main rotor, man-of-war, mandevilla, mango tree, manor hall, marblewood, maxillaria, may beetle, measurably, meat hooks, megalocyte, melon tree, metropolis, micromeria, milo maize, mistflower, monkey pod, moose-wood, mound-bird, mound bird, moustachio, mucoraceae, musk sheep, natal plum, needlewood, noble cane, numerosity, onagraceae, opera hood, orangutang, outpouring, overweight, panda bear, parietales, pea family, pectoralis, pediculati, pelycosaur, periwinkle, petaurista, pezizaceae, physic nut, pier glass, pilot boat, pinguicula, pipe organ, pitch pine, plantation, plattensee, pleasingly, polar hare, potbellied, praetorian, princewood, production, proteaceae, public law, puff adder, punch bowl, queen-size, quercitron, rabbitfish, ram's horn, rock candy, rock snake, rottweiler, round-eyed, roundabout, round clam, round hand, royal fern, rum cherry, saddlebill, safety net, salad bowl, salix alba, savonarola, schefflera, scolytidae, scoreboard, scotch fir, scots pine, scrub fowl, sea turtle, sheepshead, ship canal, shoe black, siris tree, smokestack, snake-fish, snake palm, snake wood, solanaceae, souari nut, sour gourd, spiranthes, sprig tail, squash bug, stagecoach, stave wood, still room, stone crab, strelitzia, st bernard, succussion, suckerfish, sugarberry, sugar loaf, supergiant, sweet fern, swill down, swiss pine, taro plant, thick-knee, tiger lily, tillandsia, trachodont, tree heath, tree shrew, tremendous, tripletail, tuberaceae, tulip tree, turkey oak, turnaround, ugli fruit, university, unreliable, upper case, utahraptor, vertebrate, vicia faba, voluminous, voluptuous, watermelon, water flea, water vole, weimaraner, wheelchair, wholesaler, whole slew, wildebeest, wild peach, willow oak, windjammer, wool grass, writ large, yellow oak

11 letters:
abelmoschus, actias luna, afroasiatic, agaricaceae, agriculture, alaska crab, alces alces, all get out, alnus rubra, angiopteris, angler fish, antechamber, aptenodytes, archipelago, archosauria, arctic hare, arolla pine, ascomycetes, assault gun, azadirachta, banana tree, bathing tub, battlewagon, beach buggy, beach towel, bell pepper, best seller, big-chested, bison bison, bitter-bark, black whale, bladdernose, blockbuster, blue orchid, bombacaceae, bonduc tree, bos indicus, boysenberry, brown swiss, buffalofish, bulldog ant, butcherbird, cactus wren, calandrinia, calceolaria, call center, call centre, calochortus, canoe cedar, caprimulgid, caravansary, caravan inn, carpet bomb, caspian sea, cattle farm, cauliflower, chain tongs, chittamwood, chlorophyta, citron tree, clasp knife, clock tower, cohune palm, common reed, consignment, constrictor, cornerstone, corn cockle, cownose ray, crow's foot, cynoglossum, damask rose, data mining, deinonychus, devil's fig, diamondback, diffuseness, dining-hall, directorate, distributor, dolphinfish, douroucouli, drop hammer, easter lily, emmenthaler, english oak, eubacterium, exterminate, extra large, farinaceous, finger-root, fire engine, fish fuddle, flying boat, gaviiformes, gebang palm, genus ardea, genus aster, genus carex, genus carya, genus draba, genus erica, genus ficus, genus fomes, genus mesua, genus pinus, genus piper, genus pitta, genus rubus, genus salix, genus sedum, genus viola, german iris, giant conch, giant eland, giant panda, goat willow, golden fern, golden seal, golf course, granularity, gray poplar, green gland, hadrosaurus, handle-bars, hang glider, harpy eagle, hastinapura, heavyweight, helichrysum, high roller, hog snapper, homoeopathy, hooded seal, house party, hydnocarpus, hypericales, indian bean, indian corn, indian poke, indri indri, iris family, jackass bat, java olives, jimson weed, joshua tree, june beetle, jupati palm, kidney bean, kidney fern, king orange, king salmon, kissing bug, lancet fish, lantern-fly, lantern fly, large-scale, leguminosae, loquat tree, macroscopic, mantis crab, marble-wood, massiveness, mass action, megacephaly, megaloblast, megalopolis, megatherian, megatheriid, metasequoia, midas touch, mirror carp, mist-flower, mobile home, mock orange, moss locust, mule's ears, musa ensete, muskellunge, naja hannah, natriuresis, needle-wood, needle wood, neuropteran, neuropteron, night court, nymphalidae, ocean liner, ocean perch, opera cloak, osmundaceae, os frontale, overcup oak, packing box, paddlewheel, pagoda tree, pale violet, palm family, panama tree, papaya tree, periplaneta, pier mirror, pine sawyer, pink family, pinus nigra, plate glass, plume grass, pomegranate, pomelo tree, ponderosity, porphyritic, porterhouse, portmanteau, potamogeton, potato bean, potato fern, potato vine, potato worm, pouched rat, power pylon, prairie dog, predominate, queen-sized, raffia palm, rauli beech, repair shed, respectable, riding bitt, right whale, river prawn, rock python, rome beauty, rose acacia, rose family, rose mallow, sage grouse, sagittarius, salmonberry, saucer-eyed, scarlet oak, scotch pine, sea lamprey, sea scallop, second deck, section man, senna alata, septic tank, sheet glass, shire horse, shumard oak, significant, silver lime, sleuthhound, slipperwort, snap willow, solan goose, solar array, solar house, solar panel, souari tree, spanish elm, sperm whale, sphaeralcea, sphaeriales, spotted bat, spotted gum, spotted owl, spruce pine, stiff aster, strix varia, styracosaur, substantial, sufficiency, supermarket, swiss chard, tanbark oak, tiger shark, tomato worm, touring car, tridacnidae, trumpetwood, tyrannosaur, tyrant bird, unitisation, unitization, utricularia, vanity fair, vena colica, vinca rosea, vinegarroon, violoncello, water nymph, water tower, welwitschia, whalesucker, whale shark, white goods, white shark, white sheep, wild coffee, winter fern, wood thrush, wood violet, working dog, yellow root, zonotrichia

12 letters:
adder's fern, african hemp, afro-asiatic, agribusiness, american elk, american elm, amphitheater, amphitheatre, apatura iris, area bombing, army cutworm, arundo donax, ascomycotina, assam rubber, astronomical, automeris io, avocado pear, avocado tree, badger skunk, balloon vine, balsamorhiza, barber chair, bechtel crab, bermuda lily, big business, big marigold, bird of jove, bird of juno, black cherry, black locust, black poplar, blazing star, bluefin tuna, blue catfish, blunt trauma, boar thistle, bombay ceiba, bowling ball, bristlegrass, bristle fern, brown thrush, bubble dance, buffalo fish, bull mastiff, bull thistle, bunyaviridae, by and large, cabbage tree, callistephus, camphor tree, camp meeting, canella-alba, capercaillie, capercailzie, cape buffalo, cape jasmine, caravanserai, carriage dog, carrick bend, carving fork, cassia alata, cattle ranch, cat squirrel, cement mixer, central park, chain wrench, chalice vine, channel bass, cheddar pink, class action, cochin china, common beech, common camas, common lilac, conenose bug, considerable, corn campion, corvus corax, corypha utan, cotton mouse, crack willow, cream violet, cryptoprocta, cynthia moth, dall's sheep, dance palace, darwin tulip, dawn redwood, denomination, devil's claw, discomycetes, downy poplar, drawing card, dugout canoe, easter daisy, echinocereus, elephant ear, emperor moth, endamoebidae, english bean, english iris, erythroxylon, erythroxylum, european box, european elk, factory farm, family bible, felis serval, fer-de-lance, ferris wheel, fingerflower, flannel leaf, fox squirrel, fresnel lens, frontal bone, full-bosomed, gaboon viper, garbage down, garlic chive, genus acacia, genus achras, genus allium, genus aralia, genus aramus, genus arnica, genus bletia, genus celtis, genus crambe, genus laelia, genus oxalis, genus payena, genus pipile, genus pteris, genus salvia, genus silene, genus thymus, georgia bark, georgia pine, gesneriaceae, giant fulmar, giant petrel, gila monster, golden eagle, gopher snake, graving dock, green plover, green turtle, headquarters, head cabbage, heart cherry, heavy weapon, herring gull, high colonic, high finance, hoary marmot, holy thistle, horse-pistol, horse pistol, human botfly, iguazu falls, iliac artery, indian cress, indian lotus, indigo snake, intermixture, killer whale, king penguin, king vulture, lake balaton, large number, leather fern, leucadendron, london plane, lopholatilus, lychnis alba, macrocephaly, macroglossia, manufactured, mass-produce, mass meeting, meat cleaver, mekong river, milk thistle, mossycup oak, moth mullein, moving ridge, multiplicity, muscovy duck, myrtle beech, mysore thorn, newfoundland, newport news, northern spy, norway maple, numerousness, oconee bells, ommastrephes, orcinus orca, order lobata, oregon alder, oregon cedar, oregon maple, ornithomimid, oryx gazella, ostrea gigas, packing case, paddle wheel, palma christ, pampas grass, pansy violet, pantechnicon, panthera leo, phycomycetes, pinus cembra, pinus glabra, pinus rigida, pitcher sage, progne subis, prunus avium, psi particle, pucciniaceae, pudding-face, pudding face, pumpkin vine, pussy willow, python sebae, quantum jump, quantum leap, quercus alba, quetzal bird, rattail fish, red rockfish, river cooter, rock lobster, rooter skunk, royal osmund, rubber plant, sacred lotus, salix caprea, salmon trout, sand cricket, sciuromorpha, sea crawfish, sea elephant, seismosaurus, serpent fern, shasta daisy, shoulder bag, sitka spruce, sleeping bag, snow leopard, solant goose, solar plexus, solway firth, soursop tree, sphyraenidae, spinach beet, sponge gourd, stenochlaena, stone curlew, storage tank, subcontinent, sucking fish, sula bassana, superslasher, swamp mallow, swamp poplar, sweet cherry, sweet pepper, sweet potato, sweet sultan, taraktagenos, taraktogenos, teiid lizard, triglyceride, trojan horse, true lobster, trumpet-wood, trumpet tree, trumpet vine, tulip poplar, uintatherium, ulnar artery, unmanageably, urban center, ursus arctos, varnish tree, varying hare, velvet plant, vena basalis, vincetoxicum, viola pedata, water orchid, well-endowed, whale sucker, white cockle, white turnip, white willow, wild parsnip, wooden horse, yellowhammer, yellow river

13 letters:
achras zapota, adjutant bird, albizia saman, allium porrum, american lime, anasa tristis, andean condor, anomalopteryx, antennariidae, apple of peru, assault rifle, aythya marila, bag of tricks, barrel cactus, basking shark, bass clarinet, bermuda cedar, big-eared bat, big-tree plum, big brown bat, bird of night, black economy, black hemlock, bos grunniens, bowhead whale, brassica rapa, bristle grass, brosme brosme, bushel basket, butcher knife, buteo lagopus, butterfly pea, cabin cruiser, calabash pipe, calabash tree, calycophyllum, carica papaya, carolina wren, carpenter bee, carving knife, cephalic vein, chicken snake, chinese goose, cicada killer, cinchona tree, cinnabar moth, citrus maxima, citrus medica, coleus blumei, commelinaceae, common iguana, common sorrel, containerised, containerized, corresponding, coryphaenidae, country house, covered wagon, cow-nosed ray, cucumber tree, curcuma longa, dactylomegaly, deuteromycota, diceros simus, dinner napkin, dolman sleeve, domestic carp, double-magnum, eggplant bush, elephant-tusk, elephant seal, entrance hall, epsilon toxin, erica arborea, establishment, european bean, european hare, false bugbane, family ipidae, family palmae, field spaniel, finback whale, fingal's cave, finger-flower, garden sorrel, genus albizia, genus apatura, genus arbutus, genus begonia, genus bomarea, genus catalpa, genus corypha, genus cytisus, genus fuchsia, genus halcyon, genus lewisia, genus malaxis, genus mikania, genus mutisia, genus olearia, genus opuntia, genus ormosia, genus phlomis, genus phoenix, genus pluteus, genus primula, genus quassia, genus russula, genus stachys, genus strymon, genus vanilla, german millet, giant scallop, glacial epoch, gladstone bag, golan heights, graf zeppelin, greater scaup, guinea flower, gymnocalycium, hakea laurina, harrier eagle, hellgrammiate, hero sandwich, horse gentian, hunting knife, iguana iguana, iguassu falls, imperial moth, indian python, industrialism, insignificant, jacob epstein, jamaica apple, japanese iris, japanese leaf, japanese plum, jimmy durante, jordan almond, joseph's coat, juglans regia, kenyapithecus, king's ransom, king mackerel, kola nut tree, laminariaceae, language area, language zone, large-hearted, leaf-foot bug, lecythidaceae, legume family, lepista irina, levant cotton, levant garlic, longleaf pine, lycaon pictus, macrencephaly, macrocephalic, macromolecule, macroscopical, maine lobster, maja squinado, manduca sexta, mangel-wurzel, mansion house, mantis shrimp, many anothera, marabou stork, marine turtle, marrowfat pea, mass hysteria, megakaryocyte, megalocephaly, mexican poppy, missel thrush, mistle thrush, monkey puzzle, mossy-cup oak, mound builder, mountain lion, musical score, nebraska fern, odontoglossum, order diptera, palma christi, panthera onca, papaya family, paradise tree, parotid gland, pasture brake, persian melon, phyllostachys, pigmy talinum, pine grosbeak, pleasure boat, plumeria alba, plutonic rock, pocket gopher, pogonia rosea, polypodiaceae, ponderousness, populus nigra, potato family, pound-foolish, prairie wagon, prickly poppy, protea family, psetta maxima, public domain, purkinje cell, purple martin, quercus robur, quercus rubra, raffia ruffia, ravenna grass, red rat snake, requiem shark, ringworm bush, rock squirrel, roof mushroom, rose of china, rumex acetosa, saint bernard, samia cynthia, samia walkeri, sandarac tree, saxifragaceae, sciaenid fish, sciurus niger, sergeant fish, silver linden, small fortune, snowshoe hare, solar battery, spanish onion, spear thistle, spiny lobster, staghorn fern, stegocephalia, sterculiaceae, stokes' aster, strainer vine, stratus cloud, stretch along, striped maple, styracosaurus, sumo wrestler, supermolecule, swamp red oak, temnospondyli, temple orange, theraphosidae, thuja plicata, tilia cordata, tinker's root, trading floor, trichodesmium, true bacteria, tufted puffin, tulip gentian, turban squash, turmeric root, tyrannosaurus, umbrella arum, umbrella bird, umbrella fern, umbrella tree, upland plover, victoria plum, viola striata, water spaniel, white campion, white pelican, white thistle, wild cinnamon, wild wilkworm, window oyster, woolly monkey, yellow locust, yellow poplar, yellow turnip, yucca baccata

14 letters:
adelie penguin, adjutant stork, agave sisalana, alligator pear, american bison, american eagle, american plane, american robin, ananas comosus, andaman marble, apocrine gland, ardea herodius, argus pheasant, arteria iliaca, autumn pumpkin, auxiliary cell, avalanche lily, aztec marigold, bar-room plant, basidiomycetes, big-leaf maple, bitis arietans, bitis gabonica, blennioid fish, bloodwood tree, bristly locust, brittle willow, brown thrasher, butterfly fish, cannon cracker, cape jessamine, capital letter, carpet bombing, carrion flower, chelonia mydas, chesapeake bay, chinchilla rat, chinook salmon, christmasberry, citrus grandis, citrus nobilis, cleistes rosea, climbing onion, clytocybe alba, coarse-grained, coccothraustes, coeliac plexus, cola acuminata, common rorqual, common tobacco, concrete mixer, cone-nosed bug, cornus florida, corpus sternum, crowd together, cuban sandwich, cucurbita pepo, cuniculus paca, cushion flower, cygnus atratus, daddy longlegs, darning needle, datura arborea, deltoid muscle, detention cell, devil's tongue, diospyros kaki, dormitory room, elaphe guttata, elephant's ear, english walnut, enhydra lutris, equador laurel, european beech, family gadidae, felis concolor, ficus elastica, firth of forth, flowering crab, flowering fern, foramen magnum, french bracken, frilled lizard, genus albizzia, genus alocasia, genus berberis, genus caladium, genus calanthe, genus calosoma, genus camassia, genus caragana, genus cattleya, genus cecropia, genus cinchona, genus clematis, genus clitoria, genus connarus, genus crotalus, genus curtisia, genus dillenia, genus dinornis, genus drynaria, genus encyclia, genus eryngium, genus erysimum, genus gardenia, genus gesneria, genus hibiscus, genus oncidium, genus parmelia, genus pereskia, genus plantago, genus platanus, genus puccinia, genus sadleria, genus sphagnum, genus sphecius, genus teucrium, genus thevetia, genus wisteria, giant anteater, giant kangaroo, giant silkworm, giant tortoise, glacial period, gluteal muscle, gluteus muscle, gnawing mammal, great anteater, great gray owl, great pyrenees, guerilla force, hamito-semitic, harpia harpyja, hognosed skunk, honeydew melon, horseshoe crab, horse chestnut, horse mackerel, hubbard squash, humpback whale, indian rhubarb, iris germanica, iris kaempferi, jack-a-lantern, jack-o-lantern, jamestown weed, johnny-jump-up, killarney fern, king of beasts, lady's thistle, lampris regius, lawson's cedar, leather flower, leopard lizard, lepus arcticus, llano estacado, long-fin tunny, love-in-a-mist, lunda cirrhata, lyrurus tetrix, macrencephalic, macrocephalous, macroevolution, malope trifida, mangold-wurzel, matilija poppy, megaderma lyra, megakaryocytic, merry-go-round, monitor lizard, mormon cricket, mountain avens, mushroom cloud, nebuchadnezzar, oriental plane, oxheart cherry, packing needle, painted nettle, panama redwood, panthera uncia, parka squirrel, persian walnut, phasmid insect, picture window, pinus echinata, pinus serotina, pleasure craft, poison hemlock, poison parsley, policeman bird, pongo pygmaeus, prairie marmot, prairie rocket, pride-of-india, prunus besseyi, pullulate with, purple emperor, pyramidal tent, python molurus, quercitron oak, quercus cerris, quercus lyrata, quercus prinus, quinnat salmon, quite a little, rattail cactus, rat chinchilla, red giant star, red periwinkle, ringworm shrub, rock penstemon, rosa damascena, rosebud orchid, sable antelope, salix fragilis, sapodilla tree, saturniid moth, sciaena aquila, secretary bird, sergeant major, shortleaf pine, showy milkweed, silurus glanis, snow-in-summer, sports stadium, staghorn coral, standing press, stemless daisy, striped violet, strix nebulosa, strombus gigas, swedish turnip, tagetes erecta, tautoga onitis, thresher shark, trichodontidae, trumpeter swan, trumpet flower, umbrella plant, vanda coerulea, vena cephalica, venetian sumac, victoria falls, vultur gryphus, water hyacinth, whitetip shark, white mangrove, wild west show, yellow parilla

15 letters:
achilles tendon, albizia lebbeck, american plaice, anabrus simplex, angel's trumpet, annona muricata, anser cygnoides, arteria ulnaris, artichoke plant, ascending colon, balaeniceps rex, bear's-paw fern, bernoulli's law, bidens coronata, bird of minerva, black rat snake, bladder campion, blessed thistle, boa constrictor, bologna sausage, bos primigenius, bothrops atrops, bullock's heart, butterfly plant, california fern, canada moonseed, cancer borealis, canna generalis, cape periwinkle, capra falconeri, caretta caretta, cargo container, carlina acaulis, carnivorous bat, caryophyllaceae, cast-iron plant, catharacta skua, cavernous sinus, cayenne jasmine, ceiba pentandra, cembra nut tree, cetacean mammal, charadriiformes, chilean jasmine, christmas bells, christmas berry, cirsium vulgare, citellus parryi, citrus decumana, citrus paradisi, city university, class arachnida, clematis viorna, cliff penstemon, clitocybe irina, closed universe, common foxglove, common moonseed, common polypody, concrete jungle, conestoga wagon, corypha gebanga, crambe maritima, cynara scolymus, cyprinodontidae, cyprinus carpio, darmera peltata, dentate nucleus, deuteromycotina, dioscorea alata, dishcloth gourd, dutchman's-pipe, eastern woodrat, elaphe obsoleta, english bulldog, evening lychnis, exhibition area, exhibition hall, fagus sylvatica, family fabaceae, family rosaceae, fasciolopsiasis, florentine iris, gaston lachaise, genus antheraea, genus anthurium, genus asparagus, genus campanula, genus chinchona, genus coelogyne, genus commelina, genus dalbergia, genus epilobium, genus euphorbia, genus grevillea, genus grindelia, genus heracleum, genus heritiera, genus hieracium, genus hydrangea, genus hypericum, genus lactarius, genus manilkara, genus medinilla, genus melastoma, genus onopordon, genus onopordum, genus oxytropis, genus palaquium, genus peireskia, genus penstemon, genus peperomia, genus pseudoryx, genus psithyrus, genus quamassia, genus rhipsalis, genus saxifraga, genus tanacetum, genus terrietia, german shepherd, gesneria family, giant cockroach, giant coreopsis, giant schnauzer, giant water bug, globe artichoke, golden clematis, golden polypody, goosefoot maple, grammatophyllum, great barracuda, great bowerbird, greenland whale, green hellebore, griffon vulture, guerrilla force, gyromitra gigas, hard-shell clam, hiba arborvitae, hog-nosed skunk, hot-air balloon, hydraulic press, ileocecal valve, innominate bone, ipomoea batatas, irish wolfhound, iris florentina, iris xiphioides, jabiru mycteria, jamaica dogwood, japanese medlar, japanese oyster, jatropha curcus, jerusalem thorn, jungermanniales, labor-intensive, largemouth bass, leaf-footed bug, lepus europaeus, lima bean plant, lobipes lobatus, longtail weasel, macrencephalous, maidenhair fern, mandevilla laxa, manganese steel, martes pennanti, mass production, medicinal leech, muscari comosum, mustela frenata, number cruncher, orbignya cohune, order pulmonata, osmunda regalis, panthera pardus, panthera tigris, parkia javanica, pectinibranchia, pectoral muscle, pedunculate oak, pineapple plant, pinus palustris, plexus celiacus, polyphemus moth, prairie gentian, program trading, prunus mexicana, prunus salicina, prunus serotina, public nuisance, punica granatum, quercus bicolor, quercus falcata, quercus montana, quercus phellos, rhincodon typus, rhinotermitidae, ringworm cassia, robinia hispida, rose periwinkle, saucer magnolia, sciurus griseus, searcher beetle, seriola grandis, shoeblack plant, short-leaf pine, showy sunflower, shumard red oak, silene uniflora, silene vulgaris, sirenian mammal, sium latifolium, snapping turtle, snowshoe rabbit, spanish bayonet, spirochaetaceae, starfish flower, still's disease, stillson wrench, stokesia laevis, striped dogwood, swamp white oak, synercus caffer, tassel hyacinth, tibetan mastiff, tilia americana, tilia tomentosa, tomato hornworm, true flycatcher, trumpet creeper, typha latifolia, ulmus americana, ultracentrifuge, venomous lizard, veratrum viride, white hellebore, white matsutake, xiphias gladius

16 letters:
acer platanoides, african marigold, aircraft carrier, airedale terrier, alaska king crab, albizzia lebbeck, alopius vulpinus, alpine sunflower, american buffalo, american lobster, arilus cristatus, artificial blood, atomic number 29, balkan peninsula, beefsteak tomato, beta-lipoprotein, black cottonwood, blue channel cat, bohemian waxwing, bowiea volubilis, boysenberry bush, broad-bean plant, bush honeysuckle, butterfly effect, butterfly orchid, cairina moschata, camassia quamash, campsis radicans, canary whitewood, cape hunting dog, carnation family, castanea dentata, castor-oil plant, cecropia peltata, chabad-lubavitch, chiacoan peccary, chinese cork oak, chinese hibiscus, chinese magnolia, clitoria mariana, colaptes auratus, colorado plateau, composite school, conium maculatum, cordia alliodora, cornflower aster, cotinus obovatus, counteroffensive, cryptobranchidae, cucurbita maxima, danaid butterfly, danaus plexippus, datura sanguinea, department store, descending colon, detention centre, dicamptodontidae, diomedea exulans, diospyros kurzii, dryas octopetala, easter lily vine, entoloma lividum, eptesicus fuscus, esox masquinongy, ethiopian banana, euderma maculata, eunectes murinus, european catfish, falco rusticolus, family arecaceae, family ascaridae, family homaridae, family iridaceae, family lophiidae, family mobulidae, family palmaceae, family pristidae, flathead catfish, florist's willow, fungi imperfecti, gardenia augusta, genus amaranthus, genus anatotitan, genus astragalus, genus centrosema, genus christella, genus crotalaria, genus delphinium, genus dendrobium, genus dipladenia, genus dipteronia, genus dryopteris, genus epidendrum, genus eupatorium, genus gnaphalium, genus lomogramma, genus macrozamia, genus mandevilla, genus maxillaria, genus micromeria, genus petaurista, genus pinguicula, genus schefflera, genus spiranthes, genus strelitzia, genus tillandsia, giant granadilla, giant salamander, glaucomys volans, great blue heron, grifola frondosa, guinea gold vine, hakea leucoptera, hawaiian capital, heat of solution, hen-of-the-woods, hen of the woods, india-rubber fig, indian arrowroot, interoperability, italian sandwich, labour-intensive, larus argentatus, lawson's cypress, lepiota rhacodes, lepus americanus, lincoln memorial, liomys irroratus, lycosa tarentula, macrothelypteris, magnolia fraseri, man-eating shark, mangifera indica, manilkara zapota, marco polo sheep, marmota caligata, meadow goldenrod, migratory locust, mistletoe thrush, mountain hemlock, nelumbo nucifera, nestor notabilis, northern lobster, northern red oak, nymphaea odorata, okefenokee swamp, oncidium papilio, order parietales, order pediculati, ordinary bicycle, ovibos moschatus, palmer peninsula, persea americana, physeter catodon, picea sitchensis, piedmont glacier, pilot blacksnake, pinckneya pubens, pincushion hakea, pinus sylvestris, pinus thunbergii, placuna placenta, podocarpus amara, pomegranate tree, prairie schooner, proboscis flower, protein molecule, quercus borealis, quercus coccinea, quercus velutina, raffia taedigera, rangifer caribou, red-necked grebe, ricinus communis, romneya coulteri, saturnia pavonia, saxifrage family, short-toed eagle, silene latifolia, silicone polymer, silk-cotton tree, silybum marianum, simarouba glauca, sinus cavernosus, six-gilled shark, solandra guttata, solar prominence, southern red oak, spanish mackerel, springer spaniel, sterculia family, swamp cottonwood, swiss stone pine, syringa vulgaris, tetrao urogallus, thunnus alalunga, tobacco hornworm, toxostoma rufums, transverse colon, tringa nebularia, tropaeolum majus, tuberculariaceae, tuberous begonia, upland sandpiper, vegetable marrow, whistling marmot, white rhinoceros, woodland caribou, yucca brevifolia

17 letters:
abyssinian banana, acer macrophyllum, afrasian language, alaskan king crab, alligator snapper, alpha fetoprotein, american basswood, american chestnut, american crayfish, american hornbeam, american sycamore, aotus trivirgatus, aquila chrysaetos, argemone mexicana, aspidistra elatio, black cherry tree, canella winterana, capital of hawaii, cardiac tamponade, castor bean plant, cervus canadensis, chinese evergreen, chlorophthalmidae, christmas begonia, cinchona calisaya, circassian walnut, citellus citellus, class-action suit, class ascomycetes, clitocybe robusta, cnicus benedictus, cotinus coggygria, crescentia cujete, curcuma domestica, cygnus buccinator, datura stramonium, datura suaveolens, doberman pinscher, drymarchon corais, eacles imperialis, embroidery needle, emperor butterfly, entoloma sinuatum, epidemic hysertia, family andrenidae, family burhinidae, family carangidae, family caricaceae, family casuaridae, family ctenizidae, family mucoraceae, family onagraceae, family pezizaceae, family proteaceae, family scolytidae, family solanaceae, family tuberaceae, fiber optic cable, fibre optic cable, for the most part, garden nasturtium, genus abelmoschus, genus apatosaurus, genus aptenodytes, genus azadirachta, genus calandrinia, genus calceolaria, genus calochortus, genus cynoglossum, genus helichrysum, genus hydnocarpus, genus mammillaria, genus masdevallia, genus periplaneta, genus potamogeton, genus pyrrhuloxia, genus sclerotinia, genus sphaeralcea, genus utricularia, genus zonotrichia, german police dog, gloxinia spesiosa, golden maidenhair, great white heron, great white shark, greenland caribou, green june beetle, hexanchus griseus, hippotragus niger, horse of the wood, huntingdon willow, hypericum ascyron, india-rubber tree, innominate artery, jerusalem cricket, largemouthed bass, loch ness monster, loggerhead turtle, long-clawed prawn, lowbush penstemon, luscinia luscinia, manufactured home, marattia salicina, melia azadirachta, meryta sinclairii, mexican sunflower, monarch butterfly, multitudinousness, neotoma floridana, new world vulture, nicotiana tabacum, old world vulture, order gaviiformes, order hypericales, order sphaeriales, pandion haliaetus, pere david's deer, petunia axillaris, phlebodium aureum, platanus racemosa, pneumatic caisson, podocarpus elatus, polypodium aureum, populus canescens, porterhouse steak, port orford cedar, prumnopitys amara, quercus kelloggii, quercus michauxii, quercus palustris, quercus shumardii, raffia farinifera, rangifer tarandus, rat's-tail cactus, rhinoceros beetle, rough-legged hawk, rubus spectabilis, sabinea carinalis, san joaquin river, sauropod dinosaur, shenandoah valley, shrubby penstemon, siberian pea tree, sir jacob epstein, small-leaved lime, solanum melongena, southern magnolia, sphacele calycina, spiderwort family, spoonbill catfish, stag's-horn coral, statue of liberty, steller's sea cow, sterculia apetala, sterculia foetida, sundacarpus amara, swamp rose mallow, sweet potato vine, tacca pinnatifida, tarpon atlanticus, temple of artemis, tricholoma irinum, tsuga mertensiana, turdus viscivorus, tussilago farfara, tyrannosaurus rex, tyrannus tyrannus, tyrant flycatcher, umbrella magnolia, upper-case letter, walt disney world, western red cedar, windowpane oyster

18 letters:
abominable snowman, accipiter gentilis, acrostichum aureum, aglaonema modestum, agrostemma githago, ailanthus silkworm, alpha foetoprotein, alstonia scholaris, american alligator, american cockroach, american hackberry, american hellebore, american smokewood, american white oak, angiopteris evecta, araucaria araucana, ardea occidentalis, armillaria zelleri, arvicola amphibius, asclepias speciosa, aster linarifolius, autoimmune disease, azadirachta indica, balaena mysticetus, ballistic pendulum, begonia cheimantha, bird's-foot violet, black-necked stork, board of directors, bramley's seedling, brugmansia arborea, bucephela clangula, budorcas taxicolor, buxus sempervirens, caesalpinia bonduc, calochortus luteus, calosoma scrutator, canadian goldenrod, carissa macrocarpa, carnegiea gigantea, caryocar nuciferum, cetorhinus maximus, chimaera monstrosa, chuck-will's-widow, cinchona pubescens, citellus lateralis, cleaning implement, clematis tangutica, climbing hydrangea, coast rhododendron, colonic irrigation, common rose mallow, common thorn apple, coreopsis gigantea, corydalus cornutus, corynebacteriaceae, cotinus americanus, crown-of-the-field, dalmatian laburnum, damaliscus lunatus, dermatobia hominis, diabetes insipidus, digitalis purpurea, direct correlation, dravidian language, ensete ventricosum, enterobacteriaceae, erianthus ravennae, evergreen magnolia, family agaricaceae, family bombacaceae, family leguminosae, family nymphalidae, family osmundaceae, family tridacnidae, florist's gloxinia, galeocerdo cuvieri, genus balsamorhiza, genus brontosaurus, genus callistephus, genus cryptoprocta, genus echinocereus, genus erythroxylon, genus erythroxylum, genus leucadendron, genus lopholatilus, genus plectranthus, genus rhododendron, genus salpiglossis, genus seismosaurus, genus stenochlaena, genus taraktagenos, genus taraktogenos, genus uintatherium, genus vincetoxicum, glaucomys sabrinus, gymnocladus dioica, head cabbage plant, helleborus viridis, hirudo medicinalis, hydrodamalis gigas, hymenaea courbaril, hyperbaric chamber, india-rubber plant, japanese persimmon, kingston-upon hull, lathyrus splendens, leptoptilus dubius, lepus californicus, lilium lancifolium, lilium longiflorum, lily of the valley, limulus polyphemus, locusta migratoria, long-tailed weasel, looking glass tree, lophius americanus, lubavitch movement, luvarus imperialis, macropus giganteus, madagascar jasmine, magnolia acuminata, magnolia tripetala, mainframe computer, marco polo's sheep, megatherian mammal, menippe mercenaria, milkweed butterfly, morning-after pill, nephrotic syndrome, nephthytis afzelii, new caledonian yew, nicotine poisoning, noctiluca miliaris, northern phalarope, northern sea robin, nothofagus procera, olympic salamander, ophiophagus hannan, order of magnitude, organization chart, ormosia monosperma, ovis montana dalli, pachyrhizus erosus, palaemon australis, penstemon rupicola, petromyzon marinus, phaseolus limensis, pholiota destruens, phycomycetes group, pinguinus impennis, piscidia erythrina, piscidia piscipula, plecotus townsendi, podiceps cristatus, podiceps grisegena, polypodium vulgare, pseudemys concinna, psychopsis papilio, pygoscelis adeliae, queen of the night, quercus laurifolia, quercus macrocarpa, quercus variabilis, rabbit's-foot fern, rhinoptera bonasus, ruvettus pretiosus, sarcorhamphus papa, saturation bombing, sciaena antarctica, scottish deerhound, sebastodes marinus, shovelnose catfish, sinningia speciosa, solanum wendlandii, sphecius speciosis, strix occidentalis, subclass teleostei, submarine sandwich, summer damask rose, swamp chestnut oak, sweet pepper plant, symphony orchestra, temple orange tree, tendon of achilles, thrush nightingale, tickseed sunflower, townsendia exscapa, turdus migratorius, ulcerative colitis, white-tipped shark, white mountain ash, white trumpet lily

19 letters:
abudefduf saxatilis, acer pennsylvanicum, addax nasomaculatus, african hunting dog, aleurites moluccana, allium ampeloprasum, anomalopteryx oweni, antarctic peninsula, aristolochia durior, australian chestnut, austrotaxus spicata, autoimmune disorder, bidens trichosperma, blood-brain barrier, bombycilla garrulus, boocercus eurycerus, burhinus oedicnemus, california sycamore, carissa grandiflora, catharanthus roseus, celtis occidentalis, ceratotherium simum, charronia flavigula, chelydra serpentina, chlamydera nuchalis, cinchona ledgeriana, cinnamomum camphora, cirsium lanceolatum, citellus variegatus, colocasia esculenta, common devil's claw, convallaria majalis, cordyline australis, cortaderia selloana, crotalus adamanteus, cystophora cristata, cytisus ramentaceus, dicamptodon ensatus, dioscorea bulbifera, eichhornia spesiosa, emu novaehollandiae, english walnut tree, eriobotrya japonica, eucalyptus maculata, european turkey oak, family endamoebidae, family gesneriaceae, family pucciniaceae, family sphyraenidae, fragrant water lily, gavialis gangeticus, genus aeschynanthus, genus calycophyllum, genus gymnocalycium, genus kenyapithecus, genus odontoglossum, genus phyllostachys, genus pleurothallis, genus streptocarpus, german shepherd dog, giant timber bamboo, girolamo savonarola, gossypium herbaceum, great crested grebe, great gray kangaroo, heloderma suspectum, hibiscus moscheutos, hispid pocket mouse, indian rhododendron, indri brevicaudatus, in large quantities, irish water spaniel, japanese black pine, jerusalem artichoke, kiggelaria africana, large white petunia, lepechinia calycina, macrozamia communis, macrozamia spiralis, megavitamin therapy, meleagris gallopavo, mother-in-law plant, mountain blacksnake, musculus deltoideus, musculus pectoralis, mycteroperca bonaci, myrmecophaga jubata, nauclea diderrichii, neuropterous insect, northern pitch pine, nymphalid butterfly, omphalotus illudens, order stegocephalia, order temnospondyli, panama redwood tree, pecten magellanicus, petteria ramentacea, phalacrocorax carbo, phragmites communis, pinicola enucleator, platanus acerifolia, platanus orientalis, polyporus frondosus, pride of california, prionotus carolinus, pteridium aquilinum, purple poppy mallow, pylodictus olivaris, red angel's trumpet, remilegia australis, rockingham podocarp, rudbeckia laciniata, sciaenops ocellatus, sharp-tailed grouse, shortia galacifolia, small-leaved linden, solenostemon blumei, solidago canadensis, sparmannia africana, sphenodon punctatum, sphyraena barracuda, sterculia rupestris, talinum brevifolium, thujopsis dolobrata, trachurus trachurus, verbascum blattaria, wandering albatross, western sand cherry, west indian jasmine, white cinnamon tree

20 letters:
afroasiatic language, alocasia macrorrhiza, antheraea polyphemus, armillaria ponderosa, bartramian sandpiper, bartramia longicauda, bernese mountain dog, blacktail jackrabbit, blue channel catfish, brugmansia sanguinea, brush-tail porcupine, caesalpinia sepiaria, california black oak, callimorpha jacobeae, caragana arborescens, carpinus caroliniana, cerastium tomentosum, chlamydosaurus kingi, cinchona officinalis, class basidiomycetes, common unicorn plant, common white dogwood, comprehensive school, conepatus leuconotus, cutleaved coneflower, denali national park, division chlorophyta, duck-billed dinosaur, eastern fox squirrel, eichhornia crassipes, elaphurus davidianus, erythronium montanum, european spider crab, european wolf spider, eustoma grandiflorum, family antennariidae, family commelinaceae, family coryphaenidae, family laminariaceae, family lecythidaceae, family polypodiaceae, family saxifragaceae, family sterculiaceae, family theraphosidae, gardenia jasminoides, general-purpose bomb, genus amorphophallus, genus coccothraustes, giant potato creeper, golden barrel cactus, golden wonder millet, great st john's wort, habenaria orbiculata, haemanthus coccineus, helianthus tuberosus, hydrangea petiolaris, hydrastis canadensis, hygrophorus sordidus, hylocichla mustelina, indirect correlation, interestingly enough, juniperus bermudiana, kentucky coffee tree, lachnolaimus maximus, land-office business, law of large numbers, lilies of the valley, magnolia grandiflora, magnolia macrophylla, magnolia soulangiana, megalithic structure, megaloblastic anemia, mentzelia livicaulis, mexican pocket mouse, moreton bay chestnut, negative correlation, nepal trumpet flower, new world flycatcher, old english sheepdog, old world flycatcher, parkinsonia aculeata, pelecaniform seabird, penstemon fruticosus, perognathus hispidus, photinia arbutifolia, poisson distribution, populus heterophylla, positive correlation, queen's crape myrtle, rachycentron canadum, reflecting telescope, refracting telescope, robinia pseudoacacia, rotational nystagmus, salvelinus namaycush, satureja grandiflora, sciurus carolinensis, southern yellow pine, stenopelmatus fuscus, subclass archosauria, superclass myriapoda, trachinotus falcatus, white-chinned petrel

21 letters:
aglaomorpha meyeniana, albatrellus dispansus, amsinckia grandiflora, australian blacksnake, balaenoptera physalus, blooming-fool begonia, brugmansia suaveolens, california tree poppy, callirhoe involucrata, cephalopterus ornatus, dieffenbachia sequine, eastern gray squirrel, echinocactus grusonii, eucalyptus calophylla, european black grouse, family trichodontidae, four-footed butterfly, genus grammatophyllum, giant scrambling fern, gleichenia flabellata, greater water parsnip, heritiera macrophylla, hydroelectric turbine, hylobates syndactylus, hymenoxys grandiflora, hypericum pyramidatum, jack-o-lantern fungus, laguncularia racemosa, large-leaved magnolia, largemouth black bass, leucanthemum superbum, macrocheira kaempferi, macroclemys temmincki, macronectes giganteus, macrotus californicus, madagascar periwinkle, mass-action principle, megaloblastic anaemia, melolontha melolontha, menispermum canadense, mentzelia laevicaulis, micropterus salmoides, mushroom-shaped cloud, neoceratodus forsteri, order charadriiformes, order jungermanniales, order pectinibranchia, oxyuranus scutellatus, pachyrhizus tuberosus, peltiphyllum peltatum, periplaneta americana, peromyscus gossypinus, phalaenopsis amabilis, platanus occidentalis, platymiscium pinnatum, pleuronectes platessa, portuguese man-of-war, prickly custard apple, queensland bottletree, rhizopogon idahoensis, scomberomorus cavalla, scomberomorus regalis, sebastodes ruberrimus, shortleaf yellow pine, sticherus flabellatus, subclass discomycetes, suborder sciuromorpha, taurotragus derbianus, tragelaphus eurycerus, trichomanes reniforme, trichomanes speciosum, triostium perfoliatum, welwitschia mirabilis, western big-eared bat, western gray squirrel, wyethia amplexicaulis, xenorhyncus asiaticus, xiphosurus polyphemus, yellow mariposa tulip

22 letters:
abdominal nerve plexus, acanthocybium solandri, aesculus hippocastanum, ailuropoda melanoleuca, amorphophallus rivieri, aptenodytes patagonica, arctic ground squirrel, beaumontia grandiflora, beta vulgaris vulgaris, big bend national park, brachychiton rupestris, brush-footed butterfly, brush-tailed porcupine, caesalpinia bonducella, caesalpinia decapetala, calamintha grandiflora, callitris quadrivalvis, carcharinus longimanus, carcharodon carcharias, centrosema virginianum, common snapping turtle, cortinarius armillatus, diervilla sessilifolia, eucalyptus fraxinoides, eupatorium coelestinum, family caryophyllaceae, family cyprinodontidae, family rhinotermitidae, family spirochaetaceae, genus macrothelypteris, helianthus laetiflorus, heritiera trifoliolata, hibiscus rosa-sinensis, kennedy interrnational, ketamine hydrochloride, lagerstroemia speciosa, megaptera novaeangliae, mother-in-law's tongue, neolentinus ponderosus, nothofagus cuninghamii, oceanic whitetip shark, pterocarpus angolensis, rhyacotriton olympicus, rocky mountains cherry, stephanotis floribunda, stropharia hornemannii, subdivision ascomycota, tacca leontopetaloides, terrietia trifoliolata, tetraclinis articulata, white silk-cotton tree, yellow-shafted flicker, yellow-throated marten

23 letters:
american sweet chestnut, attack aircraft carrier, australopithecus boisei, black-and-tan coonhound, boselaphus tragocamelus, campephilus principalis, capsicum annuum grossum, conoclinium coelestinum, constrictor constrictor, diamondback rattlesnake, earleaved umbrella tree, evening-primrose family, family cryptobranchidae, family dicamptodontidae, family tuberculariaceae, fuscoboletinus paluster, heteromeles arbutifolia, ivory-billed woodpecker, large-flowered calamint, largemouthed black bass, liriodendron tulipifera, lithocarpus densiflorus, low-density lipoprotein, manduca quinquemaculata, mantled ground squirrel, megalobatrachus maximus, melastoma malabathricum, old man of the mountain, onchorynchus tshawtscha, our lady's mild thistle, philadelphus coronarius, platymiscium trinitatis, proboscidea louisianica, procellariiform seabird, pseudechis porphyriacus, scomberomorus maculatus, south american bullfrog, tetraneuris grandiflora, william randolph hearst

24 letters:
aristolochia macrophylla, caprimulgus carolinensis, chamaecyparis lawsoniana, chorizagrotis auxiliaris, clinopodium grandiflorum, dromaius novaehollandiae, family chlorophthalmidae, great-leaved macrophylla, haliaeetus leucocephalus, hemitripterus americanus, large-flowering magnolia, leptoptilus crumeniferus, mastigoproctus giganteus, narrow-leaved bottletree, northern flying squirrel, pacific giant salamander, pedioecetes phasianellus, phase iii clinical trial, piedmont type of glacier, round-leaved rein orchid, sagittarius serpentarius, sorghum vulgare caudatum, southern flying squirrel, stemless carline thistle, subdivision ascomycotina, symphalangus syndactylus, thryothorus ludovicianus, viola tricolor hortensis

25 letters:
alligator mississipiensis, alligator snapping turtle, australopithecus robustus, cardiospermum halicacabum, centrocercus urophasianus, cryptacanthodes maculatus, diangus gratianopolitanus, eastern flowering dogwood, family corynebacteriaceae, family enterobacteriaceae, iris germanica florentina, large-flowered fiddleneck, paralithodes camtschatica, passiflora quadrangularis, pelecanus erythrorhynchos, phyllostachys bambusoides, post-rotational nystagmus, rhododendron californicum, ruptiliocarpon caracolito, sarcocephalus diderrichii, selenicereus grandiflorus, subdivision deuteromycota, triplochiton scleroxcylon, ventricular septal defect

26 letters:
aporocactus flagelliformis, austenitic manganese steel, brassica oleracea botrytis, brassica oleracea capitata, diplopterygium longissimum, inferior mesenteric artery, large-leaved cucumber tree, lepidocybium flavobrunneum, mammoth cave national park, procellaria aequinoctialis, quasi-stellar radio source, stropharia rugoso-annulata, trautvetteria carolinensis

27 letters:
archosargus probatocephalus, atherinopsis californiensis, catoptrophorus semipalmatus, leptodactylus pentadactylus, subdivision deuteromycotina

28 letters:
battle of the spanish armada, cryptobranchus alleganiensis, hippoglossoides platessoides, metasequoia glyptostrodoides, solenostemon scutellarioides, very low density lipoprotein

29 letters:
buffalo bill's wild west show, chrysanthemum maximum maximum, coccothraustes coccothraustes, compact disc read-only memory, ephippiorhynchus senegalensis, jerusalem artichoke sunflower, juvenile rheumatoid arthritis, kennedy international airport

31 letters:
setaria italica stramineofructa

32 letters:
complex instruction set computer, superficial middle cerebral vein

33 letters:
complex instruction set computing, gates of the arctic national park

35 letters:
weakly interacting massive particle

37 letters:
clostridium perfringens epsilon toxin


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