hominoidPronunciation: /ˈhɒmɪnɔɪd/ ZoologyDefinition of hominoid noun a primate of a group that includes humans, their fossil ancestors, and the great apes. Superfamily Hominoidea: families Hominidae and Pongidae adjective relating to hominoid primates; hominid or pongid. Origin: early 20th century: from Latin homo, homin- 'human being' + -oidhominoid in other Oxford dictionaries Definition of hominoid in the US English dictionary