Pongo pygmaeus

Orang-outang O*rang"-ou*tang`, Orang-utan O*rang"-u*tan`, n. [Malayan [=o]rang [=u]tan, i. e., man of the woods; [=o]rang man + [=u]tan a forest, wood, wild, savage.] (Zo["o]l.) An arboreal anthropoid ape ({Pongo pygmaeus}, formerly {Simia satyrus}), which inhabits Borneo and Sumatra. Often called simply {orang}. It is now an endangered species. [Written also {orangutan}, {orangutang}, {orang-utan}, {ourang-utang}, and {oran-utan}.] [1913 Webster +PJC]

Note: It is over four feet high, when full grown, and has very long arms, which reach nearly or quite to the ground when the body is erect. Its color is reddish brown. In structure, it closely resembles man in many respects. [1913 Webster]