/ Dictionary / Index C cyrtosis: Meaning and Definition of Find definitions for: cyr•to•sis Pronunciation: (sur-tō'sis), [key] — n. any abnormal curvature of the spine or of the extremities. a viral disease of the cotton plant, characterized by stunted and distorted growth. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Cyrillic cyrtostyle Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language