If you know the spelling, use the search function above to look up the meaning of the medical term in MedTerms and find related medical articles on MedicineNet.com. If you're not sure of the spelling (medical misspellings are common), type the first few letters, followed by an asterisk(*).
Amyotrophic lateral sclerosis (ALS): A classic motor neuron disease. Motor neuron diseases are progressive chronic diseases of the nerves that come from the...
Full medical definition for Amyotrophic lateral sclerosis (ALS) »
Related Article: Amyotrophic Lateral Sclerosis (ALS or 'Lou Gehrig's Disease') main article »
Health News of the Week
New & Updated
A Note to Healthcare Professionals: The MedTerms online medical dictionary is written with consumers and patients in mind. Here are other medical reference books recommended by our doctors: