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hyperextension

[hahy-per-ik-sten-shuh n]
noun
  1. the extension of a part of the body beyond normal limits.
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Origin of hyperextension

First recorded in 1880–85; hyper- + extension
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for hyperextension

hyperextension

noun
  1. extension of an arm or leg beyond its normal limits
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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

hyperextension in Medicine

hyperextension

(hī′pər-ĭk-stĕnshən)
n.
  1. Extension of a joint beyond its normal range of motion.
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Related formshy′per•ex•tend (-ĭk-stĕnd) v.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.