hyperactivity

American  

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

noun

1. the condition of being hyperactive.

2. hyperkinesia.

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hyperactivity Scientific  

/ hī′pər-ăk-tĭv′ĭ-tē /

1. 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.

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Etymology

Origin of hyperactivity

First recorded in 1885–90; hyperactive + -ity

Example Sentences

See Examples For:

hyperactivity

The plaintiffs argue that Tylenol use during pregnancy can lead to autism or attention deficit hyperactivity disorder in children.

From Barron's ● Jul. 13, 2026

A federal appeals court revived more than 500 lawsuits that allege Tylenol and generic acetaminophen can cause attention-deficit hyperactivity disorder or autism if taken during pregnancy.

From The Wall Street Journal ● Jul. 13, 2026

All three have autism, and one has severe attention-deficit hyperactivity disorder.

From Los Angeles Times ● Apr. 13, 2026

Additional research linked consumption to increased hyperactivity in children.

From Salon ● Apr. 11, 2026

And the more I began to appreciate what she did for my family, the less her accent and hyperactivity bothered me.

From "Where Things Come Back" by John Corey Whaley