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Extension of a bodily joint beyond its normal range of motion.

hy′per·ex·tend′ (-ĭk-stĕnd′) v.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


vb (tr)
(Medicine) med to overextend or to extend a joint or body part beyond its usual limit of motion
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Verb1.hyperextend - extend a joint beyond its normal range; "Don't hyperextend your elbow"
exsert, hold out, stretch forth, stretch out, put out, extend - thrust or extend out; "He held out his hand"; "point a finger"; "extend a hand"; "the bee exserted its sting"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
She said she was "too far forward" with her body as she prepared to throw and "therefore the pressure I put on it made my knee hyperextend a little bit."
For instance, the toe bones have joints and ends that would have allowed the species to hyperextend its toes to push off while walking, the study found.
ADuring a tonsillectomy the surgeon has to hyperextend your neck, stretching it further than you normally do when awake.
Another is Gaenslen's test: While the supine patient holds one knee and hip flexed into the abdomen, the other leg hangs over the edge of the examining table as the physician presses down on it to hyperextend the hip and produce pain in the SI joint.
"Some people are born with the ability to hyperextend their jaw," says Dr.
When cleaning windows that are beyond your reach, use a stool or a stepladder so you don't hyperextend your back.
Cues: Do not hyperextend the spine; slowly lift your hips off the mat.
The researchers observed a tendency in many of the cyclists to hyperextend the pelvic angle resulting in increased forces at the promontorium (where the pelvis and the sacral vertebra meet).
The impact caused his knee to hyperextend, buckling and spinning to the inside, and severing an artery.
Children with this condition can hyperextend their wrists and fingers to the point where they can easily touch their parallel forearm with their fingertips.
But an extreme force (push or pull) can cause the bones to hyperextend (increase the angle between the bones)--stretching or tearing the ligaments like a rubber band pulled too far.