Longman Dictionary of Contemporary English homepage

hyperactive

 adjective
     
Related topics: Children
hy‧per‧ac‧tive
SSC someone, especially a child, who is hyperactive is too active, and is not able to keep still or be quiet for very long [↪ attention deficit disorder]
—hyperactivity noun [uncountable]
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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