/ Dictionary / Index C cytozoon: Meaning and Definition of Find definitions for: cy•to•zo•on Pronunciation: (sī"tu-zō'on, -un), [key] — pl. -zo•a a parasite, esp. a protozoon, living within a cell. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cytotropism cywydd Related Content Daily Word Quiz: modify Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language