Word:    Find rhymes Find rhymes (advanced) Find near rhymes Find synonyms Find descriptive words Find phrases Find antonyms Find definitions Find related words Find similar sounding words Find similarly spelled words Find homophones Find phrase rhymes Match consonants only Match these letters Find anagrams (unscramble) Definitions of nitrogen-13: noun:   (physics) A radioactive isotope of nitrogen, ¹³₇N, having seven protons and six neutrons, and a half-life of less than ten minutes; it is used in positron emission tomography (Definitions from Wiktionary) Related words...   Help  Feedback  Privacy  Terms of Use Copyright © 2023