[ik-sten-ser, -sawr]
noun Anatomy.
a muscle that serves to extend or straighten a part of the body.

1700–10; < Neo-Latin, equivalent to Latin extend(ere) to extend + -tor -tor, with -dt- > -s-

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To extensor
World English Dictionary
extensor (ɪkˈstɛnsə, -sɔː)
Compare flexor any muscle that stretches or extends an arm, leg, or other bodily part
[C18: from New Latin, from Latin extensus stretched out]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary

extensor ex·ten·sor (ĭk-stěn'sər)
A muscle that extends or straightens a limb or body part.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
extensor   (ĭk-stěn'sər)  Pronunciation Key 
A muscle that extends or straightens a limb or joint. Compare flexor.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Related Words
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature