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cogwheel rigidity

cogwheel rigidity in Medicine

cogwheel rigidity n.
Rigidity in which the muscles respond with cogwheel-like jerks to the use of force in bending the limb, as occurs in Parkinson's disease.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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