Athetosis and Brain disorder

Athetosis noun - A continuous succession of slow, writhing, involuntary movements of the hands and feet and other body parts.

Brain disorder and athetosis are semantically related. In some cases you can use "Brain disorder" instead a noun "Athetosis".

Brain disorder noun - Any disorder or disease of the brain.

Athetosis and brain disorder are semantically related. You can use "Athetosis" instead a noun phrase "Brain disorder".