/ Dictionary / Index C chacma: Meaning and Definition of Find definitions for: chac•ma Pronunciation: (chak'mu), [key] — n. a large, brownish-gray baboon, Papio ursinus, of southern Africa. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: chacma (Thesaurus) chackle Chaco Related Content Daily Word Quiz: penurious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language