hyperactivity

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

noun

the condition of being hyperactive.

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Origin of hyperactivity

First recorded in 1885–90; hyperactive + -ity
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for hyperactivity

Medical 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.

Scientific 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.