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
   "ALS caused rapid deterioration of his muscle function";
   - amyotrophic lateral sclerosis, Lou Gehrig's disease

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, Ala.

Type of: American state, induration, nervous disorder, neurological disease, neurological disorder, sclerosis

Part of: America, Confederacy, Confederate States, Confederate States of America, Deep South, Dixie, Dixieland, Gulf Coast of the United States, Gulf States, 'Merica, South, Southern United States, the States, U.S., U.S.A., United States, United States of America, US, USA

Encyclopedia: ALS