ALS - Definition

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WordNet Dictionary

	Definition:	[n] thickening of tissue in the motor tracts of the lateral columns and anterior horns of the spinal cord; results in progressive muscle atrophy that starts in the limbs

	Synonyms:	amyotrophic lateral sclerosis, Lou Gehrig's disease

	See Also:	induration, monogenic disease, monogenic disorder, sclerosis

Webster's 1913 Dictionary

	Definition:	\Als\, adv. 1. Also. [Obs.] --Chaucer. 2. As. [Obs.] --Chaucer.