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1. 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
   - amyotrophic lateral sclerosis, Lou Gehrig's disease

1. A silvery ductile metallic element found primarily in bauxite
   - aluminum [N. Amer], aluminium [Brit, Cdn], atomic number 13

1. A state in the southeastern United States on the Gulf of Mexico; one of the Confederate states during the American Civil War
   - Alabama, Heart of Dixie, Camellia State

Type of: American state, induration, metal, metallic element, nervous disorder, neurological disease, neurological disorder, sclerosis, South

Part of: aluminium foil [Brit], aluminum foil [N. Amer], America, bauxite, Confederacy, Confederate States, Confederate States of America, Deep South, Dixie, Dixieland, Duralumin, Gulf States, South, the States, tin foil, U.S., U.S.A., United States, United States of America, US, USA

Encyclopedia: AL AL, TN and Northern Railroad