/ Dictionary / Index C coccidium: Meaning and Definition of Find definitions for: coc•cid•i•um Pronunciation: (kok-sid'ē-um), [key] — pl. -cid•i•a any sporozoan of the order Coccidia, often parasitic in the digestive tracts of certain animals and a cause of coccidiosis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: coccidium (Thesaurus) coccidiosis coccobacillus Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language