motor neuron disease
American Heritage Stedman's Medical Dictionary:
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motor neuron disease
n.
Any of various diseases of motor neurons, such as progressive muscular atrophy, amyotrophic lateral sclerosis, progressive bulbar paralysis, and primary lateral sclerosis.
Mosby's Dental Dictionary:
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motor neuron disease
n
A progressive disease that tends to affect middleage men with degeneration of anterior horn cells, motor cranial nerve nuclei, and pyramidal tracts. Amyotrophic lateral sclerosis is a motor neuron disease.
