/ Dictionary / Index N necrosis: Meaning and Definition of Find definitions for: ne•cro•sis Pronunciation: (nu-krō'sis, ne-), [key] — n. death of a circumscribed portion of animal or plant tissue. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: necrosis (Thesaurus) necrose necrotize Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language