rhesus Hear it!

rhesus definition

rhe·sus (rē′səs)

noun

a brownish-yellow macaque (Macaca mulatta) of India, often kept in zoos and used extensively in biological and medical research
in full rhesus monkey

Etymology: ModL, arbitrary use of L Rhesus (Gr Rhēsos), proper name

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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