Definition of hyperactivity
1 : the state or condition of being overly active Canada geese are disarmingly expressive. … They disdain the frantic hyperactivity of smaller birds. — Benjamin B. Bachman
2 : increased levels of function or activity especially when considered abnormally excessive She had developed delusions of invincibility, along with bouts of hyperactivity and severe insomnia. — Per Ola and Emily D'Aulaire; especially : higher than usual levels of movement and activity (such as excessive talking or fidgeting) typically associated with attention deficit disorder An estimated 1 in 50 school-age children in the United States, receive stimulant medication to help quell inattentiveness and hyperactivity. — Christine Mlot
Recent Examples of hyperactivity from the Web
Some of these include (PDF) anxiety, depression, problems with emotional regulation, hyperactivity, substance abuse and eating disorders.
Thank Europe: A 2007 study linked six artificial colors to hyperactivity in children, and by 2011 their use had plummeted.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hyperactivity'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of hyperactivity
Seen and Heard
What made you want to look up hyperactivity? Please tell us where you read or heard it (including the quote, if possible).