hyperactivity (in children); hyperkinesis
Medical term for excessive motor activity, often used in the context of ADHD or similar conditions in children.
Children with hyperactivity often find it difficult to sit still.
ADHD, the full clinical term; 多動症 focuses specifically on the hyperactivity component.
attention deficit hyperactivity disorder; ADHD
attention deficit hyperactivity disorder; ADHD
Compound of 多 (many, excessive), 動 (movement), and 症 (symptom, condition).