Siamang

n.

1.

(Zool.) A gibbon (Hylobates syndactylus), native of Sumatra. It has the second and third toes partially united by a web.

Noun

1.

siamang - large black gibbon of Sumatra having the 2nd and 3rd toes partially united by a web Synonyms: Hylobates syndactylus, Symphalangus syndactylus

genus Hylobates, Hylobates, Hylobates syndactylus, lesser ape, Symphalangus syndactylus