hyperactivity

[ hahy-per-ak-tiv-i-tee ]
/ ˌhaɪ pər ækˈtɪv ɪ ti /

noun

the condition of being hyperactive.

Nearby words

  1. hyper-,
  2. hyperaccumulator,
  3. hyperacidity,
  4. hyperaction,
  5. hyperactive,
  6. hyperacusis,
  7. hyperadenosis,
  8. hyperadiposis,
  9. hyperadrenocorticalism,
  10. hyperaemia

Origin of hyperactivity

First recorded in 1885–90; hyperactive + -ity

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for hyperactivity



Word Origin and History for hyperactivity

hyperactivity

n.

1852, from hyper- + activity.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for hyperactivity

hyperactivity

[ hī′pər-ăk-tĭvĭ-tē ]

n.

A general restlessness or excess of movement, as that in children with minimal brain dysfunction or hyperkinesis.

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

Science definitions for hyperactivity

hyperactivity

[ hī′pər-ăk-tĭvĭ-tē ]

An abnormally high level of activity or excitement shown by a person, especially a child, that interferes with the ability to concentrate or interact with others.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.