Source : Webster's Revised Unabridged Dictionary (1913)

Chacma \Chac"ma\, n. [Native name.]
   A large species of African baboon ({Cynocephalus porcarius});
   -- called also {ursine baboon}.

   Note: [See Illust. of {Baboon}.]

Source : WordNet®

chacma
     n : grayish baboon of southern and eastern Africa [syn: {chacma
         baboon}, {Papio ursinus}]