amyotrophic lateral sclerosis
amyo·tro·phic lateral sclerosis
noun \ˌā-ˌmī-ə-ˈtrō-fik-, -ˈträ-\Definition of AMYOTROPHIC LATERAL SCLEROSIS
: a rare progressive degenerative fatal disease affecting the motor neurons, usually beginning in middle age, and characterized especially by increasing and spreading muscular weakness and atrophy —abbreviation ALS —called also Lou Gehrig's disease
Origin of AMYOTROPHIC LATERAL SCLEROSIS
2a- + my- + -trophic
First Known Use: 1875
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