1. relating to or characterized by athetosis; marked by involuntary, slow, writhing movements, typically resulting from brain damage or neurological disorder
Usage: medical; often used in clinical contexts to describe a form of cerebral palsy

1. a person who has athetosis or exhibits athetoid movements
Usage: medical; less common than the adjective form

Examples

• The patient displayed athetoid movements in both hands.
• Athetoid cerebral palsy is characterized by involuntary, flowing motions.
• The neurologist noted athetoid symptoms in the child's upper extremities.
• Some individuals with athetoid conditions benefit from physical therapy.
• The athetoid movements became more pronounced during periods of stress.