from
The Collaborative International Dictionary of English v.0.48
Gibbon \Gib"bon\, n. [Cf. F. gibbon.] (Zool.)
Any arboreal ape of the genus {Hylobates}, of which many
species and varieties inhabit the East Indies and Southern
Asia. They are tailless and without cheek pouches, and have
very long arms, adapted for climbing.
Note: The white-handed gibbon ({Hylobates lar}), the crowned
({H. pilatus}), the wou-wou or singing gibbon ({H.
agilis}), the siamang, and the hoolock. are the most
common species.
[1913 Webster]