from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. An abnormal increase in muscular activity.
  • n. Hyperactivity, especially in children.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. hyperkinesis


hyper- + Greek kīnēsis, movement (from kīnein, to move; see kei-2 in Indo-European roots) + -ia1.
(American Heritage® Dictionary of the English Language, Fourth Edition)


  • (iv) the central and the peripheral nervous system (giving loss of appetite, hyperkinesia, aggressiveness and in severe cases encephalopathy; in industrial workers symptoms like wrist and foot drop - 'palsy' - are seen).

    Chapter 13


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