siamang Siam • Siamese · · · Info · Definitions · Synonyms · Characters · · siamang · · Text Latin · · Script 7 · · Length Definitions · · · (noun) large black gibbon of Sumatra having the 2nd and 3rd toes partially united by a web. Synonyms: Hylobates syndactylus, Symphalangus syndactylus. · · Noun Definition 1 Synonyms · · · hylobates syndactylus · · Synonym 1 symphalangus syndactylus · · Synonym 2 Characters · · a latin small letter a U+0061 g latin small letter g U+0067 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E s latin small letter s U+0073