Dryopithecus Syllabification: (Dry·o·pith·e·cus)Pronunciation: /ˌdrīōˈpiTHikəs/Definition of Dryopithecus noun a fossil anthropoid ape of the middle Miocene to early Pliocene epochs, including the supposed common ancestor of gorillas, chimpanzees, and humans. Genus Dryopithecus, family Pongidae Derivatives dryopithecinePronunciation: /-ˈpiTHiˌsēn/ noun & adjective Origin:modern Latin, from Greek drus 'tree' + pithēkos 'ape'Dryopithecus in other Oxford dictionaries Definition of Dryopithecus in the British & World English dictionary