Dictionary.com

extensor

[ ik-sten-ser, -sawr ]
/ ɪkˈstɛn sər, -sɔr /
Save This Word!

noun Anatomy.

a muscle that serves to extend or straighten a part of the body.

QUIZZES

THINK YOU’VE GOT A HANDLE ON THIS US STATE NICKNAME QUIZ?

Did you ever collect all those state quarters? Put them to good use on this quiz about curious state monikers and the facts around them.
Question 1 of 8
Mississippi’s nickname comes from the magnificent trees that grow there. What is it?

Origin of extensor

1700–10; <New Latin, equivalent to Latin extend(ere) to extend + -tor-tor, with -dt->-s-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for extensor

British Dictionary definitions for extensor

extensor
/ (ɪkˈstɛnsə, -sɔː) /

noun

any muscle that stretches or extends an arm, leg, or other bodily partCompare flexor

Word Origin for extensor

C18: from New Latin, from Latin extensus stretched out
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

Medical definitions for extensor

extensor
[ ĭk-stĕnsər ]

n.

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.

Scientific definitions for extensor

extensor
[ ĭk-stĕnsər ]

A muscle that extends or straightens a limb or joint. Compare flexor.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
See Today's Synonym