motor neu‧rone dis‧ease /ˌməʊtə ˈnjʊərəʊn dɪˌziːz $ ˌmoʊtər ˈnʊroʊn-/ noun [uncountable]
a serious disease that causes a gradual loss of control over the muscles and nerves of the body, resulting in death

[TahlilGaran] Dictionary of Contemporary English ▲