/ Dictionary / Index N nonmetal: Meaning and Definition of Find definitions for: non•met•al Pronunciation: (non-met'l), [key] — n. Chem. an element not having the character of a metal, as carbon or nitrogen. an element incapable of forming simple positive ions in solution. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nonmetal (Thesaurus) nonmember nonmetallic Related Content Daily Word Quiz: dissonant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language