SIAMANG Meaning of SIAMANG in English [ 'sʌɪəmaŋ , 'si:ə- ]■ noun a large black gibbon native to Sumatra and Malaya. [ Hylobates syndactylus .]OriginC19: from Malay. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004