'hyperactivity' definitions:
Definition of 'hyperactivity'
(from WordNet)
noun
A condition characterized by excessive restlessness and movement
Definition of 'hyperactivity'
From: GCIDE
- hyperactivity \hyperactivity\ n. an unusually high level of activity; -- used especially with respect to children who move around frequently and do not sit still very long, most noticeably in school. It is sometimes associated with attention deficit disorder. [PJC]