American Dictionary
Definition ALS in American English
ALS abbreviation
abbreviation
1
amyotrophic lateral sclerosis: a neurodegenerative (=involving nerve damage) disease that is one of the main types of motor neuron disease. The term is used mainly in American English.
Example
Reese Witherspoon and Renee Zellweger had a very personal reason to participate in today's ALS Walk in downtown Los Angeles.
