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attention deficit hyperactivity disorder

noun
  1. a condition, usually in children, characterized by inattention, hyperactivity, and impulsiveness.
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Origin of attention deficit hyperactivity disorder

First recorded in 1985–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for attention deficit hyperactivity disorder

attention deficit hyperactivity disorder

noun
  1. a form of attention deficit disorder in which hyperactivity is a prominent symptomAbbreviation: ADHD
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

attention deficit hyperactivity disorder in Science

attention deficit hyperactivity disorder

  1. A syndrome of disordered behavior, usually diagnosed in childhood, characterized by a persistent pattern of impulsiveness, inattentiveness, and sometimes hyperactivity that interferes with academic, occupational, or social performance. Also called attention deficit disorder
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.