What is "hyperkinesis"

Hyperkinesis \Hy`per*ki*ne"sis\, n. [NL., fr. Gr. "ype`r over + ? motion.] (Med.) Abnormally increased muscular movement; spasm.

n. 1 Abnormally increased and sometimes uncontrollable activity or muscular movements. 2 A condition especially of childhood characterized by hyperactivity.

Hyperkinesis may refer to:

• Hyperkinesia, abnormally heightened, sometimes uncontrollable muscle movement
• Hyperactivity, abnormally heightened activity
• Hyperkinetic disorder, an early childhood-onset disorder characterized by hyperactivity, impulsivity and inattention, similar to attention deficit hyperactivity disorder