/ Dictionary / Index C catechin: Meaning and Definition of Find definitions for: cat•e•chin Pronunciation: (kat'i-chin, -kin), [key] — n. a water-soluble, astringent yellow compound, CHO, found in gambier, used chiefly in tanning and dyeing. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: catechin (Thesaurus) catechetical catechism Related Content Daily Word Quiz: entomology Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language