/ Dictionary / Index S stenosis: Meaning and Definition of Find definitions for: ste•no•sis Pronunciation: (sti-nō'sis), [key] — n. Pathol. a narrowing or stricture of a passage or vessel. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: stenosis (Thesaurus) stenosed stenothermophile Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language