/ Dictionary / Index C cytarabine: Meaning and Definition of Find definitions for: cy•tar•a•bine Pronunciation: (sī-tar'u-bēn"), [key] — n. Pharm. a toxic synthetic nucleoside, CHNO, used as an immunosuppressive and cytotoxic agent in the treatment of certain leukemias. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cystostomy cytaster Related Content Daily Word Quiz: pristine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language