Definition of "hyperkinetic" [hy•per•ki•net•ic]

• Having or exhibiting hyperkinesia or hyperactivity. (adjective)
• Wildly fast-paced or excited; frenetic: a hyperkinetic sales pitch. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "THERE is one kind of energy discharger that we may call the hyperkinetic, controlled practical type."
• "He suggests, for example, that the prevalence of the "hyperkinetic" disorder in boys may be due to the fact that female teachers do not cope wisely with "appropriately boyish" behavior."
• "He is quite correct in suspecting that the term "hyperkinetic" is a somewhat loose one."