/ Dictionary / Index C citrin: Meaning and Definition of Find definitions for: cit•rin Pronunciation: (si'trin), [key] — n. Biochem. bioflavonoid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: citrin (Thesaurus) citriculture citrine Related Content Daily Word Quiz: digression Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language