Definition of "howler monkey" []

• Any of several monkeys of the genus Alouatta of tropical America, having a long prehensile tail and an extremely loud, howling call. (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.

• "A third primate species within the ten-hectare area was the red howler monkey Alouatta seniculus, which had the advantage of being folivorous."