/ Dictionary / Index C carotenoid: Meaning and Definition of Find definitions for: ca•rot•e•noid Pronunciation: (ku-rot'n-oid"), [key] — Biochem. Biochem. —n. any of a group of red and yellow pigments, chemically similar to carotene, contained in animal fat and some plants. —adj. similar to carotene. pertaining to carotenoids. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: carotenoid (Thesaurus) carotene Carothers Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language