a hypothetical primate representing a transitional form between true humans and the anthropoid apes, considered by some as constituting the genus Australopithecus.
Any of various extinct primates, such as pithecanthropus, sometimes considered intermediate in evolution between the anthropoid apes and modern humans. Not in scientific usage.
A person or creature held to combine characteristics of apes and humans, as:
A brawny or brutish man.
An archetype of the primitive or instinctual aspect of human nature: "The superman has created the airplane and the radio, the ape-man has got hold of them"(Los Angeles Times).