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amyotrophic lateral sclerosis definition

amyo·trophic lateral sclerosis (ā′mī′ō träf′ik, -trō′fik)

a degenerative disease of the nerve cells that control muscular movement; Lou Gehrig's disease

Etymology: < ModL amyotrophia, muscular atrophy < Gr a-, not + myos (see myo-) + -trophia, -trophy + -ic

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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