Definition of "hyperactivity" []

• Quality of being hyperactive; excessive and pathological movement and restlessness (noun)

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• "NED needs his Ritalin — his hyperactivity is out of control."
• "The extremes of these changes in levels of activity are termed hyperactivity and hypoactivity."
• "His hyperactivity is a blessing and a curse for his 34 full-time staffers, too, who chase after Beck and his volcanic mental eruptions, helping him turn those words into new productions and sources of profit."