Submitted by György Chityil ... on Fri, 01/19/2018 - 18:23 Hierarchy: NounDescription: {{context|disease|neurology}} Any of a group of progressive neurological disorders attacking motor neurons.Ngram: motor neuron diseaseNgram Text: motor neuron diseaseSource: WiktionaryIssue: 0Wiktionary tag: diseaseneurologyNgram Count: 3