First Known Use: 1875
Dictionary
amyotrophic lateral sclerosis
noun amyo·tro·phic lateral sclerosis \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
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Origin of AMYOTROPHIC LATERAL SCLEROSIS
2a- + my- + -trophic
Medical Dictionary
amyotrophic lateral sclerosis
noun
Medical Definition of AMYOTROPHIC LATERAL SCLEROSIS
: a rare fatal progressive degenerative disease that affects pyramidal motor neurons, usually begins in middle age, and is characterized especially by increasing and spreading muscular weakness—abbreviation ALS; called also Lou Gehrig's disease
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