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amyotrophic lateral sclerosis
a·my·o·tro·phic lat·er·al scle·ro·sis
noun
Definition:
nervous system disease:
a fatal degenerative disease of the nervous system marked by progressive muscle weakness and atrophy. It is a form of motor neuron disease.
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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