Breadcrumb Home > Dictionary > Index C cyanosis: Meaning and Definition of Find definitions for: cy•a•no•sis Pronunciation: (sī"u-nō'sis), [key] — n. Pathol. blueness or lividness of the skin, as from imperfectly oxygenated blood. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cyanosis (Thesaurus) cyanoplatinite cyanotype ✖ Related Content Daily Word Quiz: nomdeguerre Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language