airfoils, aerofoils, venturi, flanges, rotor, inlet manifold, impellers, pintle, strakes, ailerons, underwing, apertures, rotor shaft, nozzles, propellers, crankshaft, lamella, laminar, piston, piston rod, sheave, upstroke, dihedral, louvers, trunnion, actuator, splines, cowling, airflows, detents, chamfers, louvres, volute, empennage, pushrods, windings, fletching, laminar flow, nosepiece, sponsons, wind vane, airbrake, baseplate, deflector, airstream, radome, slats, valance, arrester, corrugation, blades, spacers, platens, stators, rearwards, bimetal, curvatures, vernier, crossflow, rotary actuator, swage, valving, diverter, vertical fin, beveling, stiffeners, mullions, tappet, vortices, serrations, handwheel, axial, tubercles, gimbals, busbar, vents, actuation, tailpiece, tailstock, countersunk, phosphor bronze, centrifugal pump, coulters, combustor, tailplane, diameters, coiler, pushrod, crankcases, sidewalls, spinneret, inlet, mandrels, fins, retroreflector, bushing, jambs, exhaust valve, cogwheels, idler pulley, downstroke, flaps, vane, baffles, diaphragms, panels, spokes, struts, strips, coils, pipes, prongs, slits, slots, battens, braces, loops, troughs

arrow, chloris truncata, creeping windmill grass, star grass, windmill grass