| amyotrophic lateral sclerosis | (n) 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, Syn. ALS, Lou Gehrig's disease |
| gehrig | (n) baseball player who died of amyotrophic lateral sclerosis (1903-1941), Syn. Henry Louis Gehrig, Lou Gehrig |