Definition of "siamang" []

• A large black gibbon (Symphalangus syndactylus or Hylobates syndactylus) of Sumatra and the Malay Peninsula, having an inflatable throat sac and a web of skin joining the second and third toes. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The siamang is a black-furred gibbon native to forests in Malaysia and Indonesia's Sumatra province."
• "So if you looked at the animal you might say that it resembled a siamang or an agile gibbon on steroids!"
• "The destruction includes prime habitat for the orangutan, siamang, and white-handed gibbon."