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hyperactive

[hahy-per-ak-tiv] /ˌhaɪ pərˈæk tɪv/
adjective
1.
unusually or abnormally active:
a company's hyperactive growth; the child's hyperactive imagination.
2.
(of children) displaying exaggerated physical activity sometimes associated with neurologic or psychologic causes.
Origin
1865-1870
1865-70; hyper- + active
Related forms
hyperaction
[hahy-per-ak-shuh n] /ˌhaɪ pərˈæk ʃən/ (Show IPA),
noun
hyperactively, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for hyper action

hyperactive

/ˌhaɪpərˈæktɪv/
adjective
1.
abnormally active
Derived Forms
hyperaction, noun
hyperactivity, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for hyper action

hyperactive

adj.

1852, from hyper- + active.

Online Etymology Dictionary, © 2010 Douglas Harper
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hyper action in Medicine

hyperactive hy·per·ac·tive (hī'pər-āk'tĭv)
adj.

  1. Highly or excessively active, as a gland.

  2. Having behavior characterized by constant overactivity.

  3. Afflicted with attention deficit disorder.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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