Breadcrumb Home > Thesaurus > S Synonyms of siamang Find synonyms for: Noun 1. siamang, Hylobates syndactylus, Symphalangus syndactylus, lesser ape usage: large black gibbon of Sumatra having the 2nd and 3rd toes partially united by a web WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of siamang (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: praedial Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language