n.
A large semiaquatic rodent (Hydrochoerus hydrochaeris) of tropical South America, having short limbs and a vestigial tail and often attaining lengths of more than 1.2 meters (4 feet).
[Portuguese capybara, from Tupi capivara, capibara : capii, grass + urara, eater.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.