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extensor

American  
[ik-sten-ser, -sawr] / ɪkˈstɛn sər, -sɔr /

noun

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


extensor British  
/ ɪkˈstɛnsə, -sɔː /

noun

  1. 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

extensor Scientific  
/ ĭk-stĕnsər /
  1. A muscle that extends or straightens a limb or joint.

  2. Compare flexor


Etymology

Origin of extensor

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

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Vocabulary lists containing extensor

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

If the wrist extensor muscles are contracted, the fingers re-open and the hand releases the pen.

From Science Daily Dec. 5, 2023

Twins: RHP Jorge Alcala was placed on the 15-day injured list with a right forearm extensor muscle strain, retroactive to Monday.

From Washington Times May 17, 2023

He left with what the Red Sox said was right forearm extensor tightness.

From Seattle Times Jul. 8, 2022

The Angels later announced that Shoemaker experienced tightness in the extensor muscle of his right forearm.

From Los Angeles Times Jun. 14, 2017

B. The radials represented by a single muscle, the anterior extensor of the metacarpus.

From Artistic Anatomy of Animals by Cuyer, ?douard

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