si·a·mang /ˈsiəˌmæŋ, ˈsaɪ-/
Si·a·mang n. Zool. A gibbon (Hylobates syndactylus), native of Sumatra. It has the second and third toes partially united by a web.
n : large black gibbon of Sumatra having the 2nd and 3rd toes
partially united by a web [syn: Hylobates syndactylus,