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rhesus monkey

noun

a macaque monkey, Macaca mulatta, of S Asia: used extensively in medical research

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Word Origin for rhesus monkey

C19: New Latin, arbitrarily from Greek Rhesos Rhesus
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Science definitions for rhesus monkey

rhesus monkey

[rē′səs]

A small, yellowish-brown monkey (Macaca mulatta) of India, widely used in biological and medical research. The Rh (Rhesus) factor was first discovered in rhesus monkeys.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.