amyotrophic lateral sclerosis(n = noun.state) als, lou gehrig's disease - 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;
is a kind of nervous disorder, neurological disease, neurological disorder, induration, sclerosis

arterial sclerosis, disseminated multiple sclerosis, disseminated sclerosis, lateral, lateral cerebral sulcus, lateral condyle, lateral epicondyle, lateral epicondylitis, lateral geniculate body, lateral humeral epicondylitis, lateral line, lateral line organ, lateral pass, lateral rectus, lateral rectus muscle, lateral thinking, lateral ventricle, multiple sclerosis, sclerosis