/ Dictionary / Index C caecum: Meaning and Definition of Find definitions for: cae•cum Pronunciation: (sē'kum), [key] — pl. -ca cecum. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: caecum (Thesaurus) caecilian Cædmon Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language