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flexion

[flek-shuh n]
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noun
  1. Anatomy.
    1. the act of bending a limb.
    2. the position that a limb assumes when it is bent.
  2. Chiefly British. flection(defs 1–3).
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Origin of flexion

1595–1605; < Latin flexiōn- (stem of flexiō) a bending, turning. See flex1, -ion
Related formsflex·ion·al, adjectiveflex·ion·less, adjectivehy·per·flex·ion, nouno·ver·flex·ion, nounsu·per·flex·ion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for hyperflexion

flexion

noun
  1. the act of bending a joint or limb
  2. the condition of the joint or limb so bent
  3. a variant spelling of flection
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Derived Formsflexional, adjectiveflexionless, adjective
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

Word Origin and History for hyperflexion

flexion

n.

c.1600, from Latin flexionem (nominative flexio) "a bending, swaying; bend, turn, curve," noun of action from past participle stem of flectere "to bend" (see flexible).

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Online Etymology Dictionary, © 2010 Douglas Harper

hyperflexion in Medicine

hyperflexion

(hī′pər-flĕkshən)
n.
  1. Flexion of a limb or part beyond its normal range.
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Related formshyper•flex′ v.

flexion

(flĕkshən)
n.
  1. The act of bending a joint or limb in the body by the action of flexors.
  2. The condition of being flexed or bent.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.