a muscle that serves to extend or straighten a part of the body.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use extensor in a sentence
The wrist is also bent, causing structures like the wrist and finger extensor and flexor tendons to have to work harder under excess strain.
He differs from man in the figure of the deltoides, pronator, radi teres, et extensor pollicis brevii.Buffon's Natural History. Volume IX (of 10) | Georges Louis Leclerc de Buffon
The term extensor in the name of this muscle does not refer to its function.Variation in the Muscles and Nerves of the Leg in | E. Bruce Holmes
Velpeau advised division of the extensor muscles of the tongue.Psychotherapy | James J. Walsh
In another (Elizabeth Alford) lepra affected the extensor surfaces of the thoracic and pelvic limbs.On the Genesis of Species | St. George Mivart
The magnetic field cut off and he instantly raced his extensor motors to leap forward.The Velvet Glove | Harry Harrison
British Dictionary definitions for extensor
any muscle that stretches or extends an arm, leg, or other bodily part: Compare flexor
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
Scientific definitions for extensor
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.