/ Dictionary / Index N nonpoint: Meaning and Definition of Find definitions for: non•point Pronunciation: (non'point"), [key] — adj. of or pertaining to a source of pollution that is not readily and specifically identifiable, as water runoff. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. nonplus nonpolar Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language