amyotrophic lateral sclerosis

Medical Dictionary

amyotrophic lateral sclerosis a·my·o·troph·ic lateral sclerosis (ā-mī'ə-trŏf'ĭk, -trō'fĭk)
n.
A disease of the motor tracts of the lateral columns and anterior horns of the spinal cord, causing progressive muscular atrophy, increased reflexes, fibrillary twitching, and spastic irritability of muscles. Also called Charcot's disease, Lou Gehrig'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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