/ Dictionary / Index C Congo color: Meaning and Definition of Find definitions for: Con'go col"or Pronunciation: [key] — Chem. Chem. any of a group of azo dyes derived from benzidine that will dye cotton and other vegetable fibers without the aid of a mordant. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. congo Congo Free State Related Content Daily Word Quiz: jaundice Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language