Any of several small, brightly colored arboreal monkeys of the genus Saimiri, widely distributed in South and Central American tropical forest regions, having a white face with black nose and mouth, short fur, and a long nonprehensile tail.
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.