A howler monkey in a tree.Licensed from iStockPhoto
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
any of a genus (Alouatta, family Cebidae) of large New World monkeys with a loud, howling cry and a long, prehensile tail
occasionally called howling monkey
Used by arrangement with John Wiley & Sons, Inc.
nounThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Any of several monkeys of the genus Alouatta of tropical America, having a long prehensile tail and an extremely loud, howling call.