attention deficit hyperactivity disorder
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Related to attention deficit hyperactivity disorder: attention deficit disorder
attention deficit hyperactivity disorder
n. Abbr. ADHD
A neurodevelopmental disorder that begins in childhood, characterized by persistent impulsiveness, difficulties in focusing on tasks or paying attention, and often hyperactivity, and interfering especially with academic, occupational, and social performance. Also called attention deficit disorder.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
attention deficit hyperactivity disorder
n
(Medicine) a form of attention deficit disorder in which hyperactivity is a prominent symptom. Abbreviation: ADHD
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
atten′tion def`icit hyperactiv′ity disor`der
n.
a condition, usu. in children, characterized by inattention, hyperactivity, and impulsiveness.
[1985–90]
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Noun | 1. | ![]() ADD, ADHD, attention deficit disorder, hyperkinetic syndrome, MBD, minimal brain damage, minimal brain dysfunction hyperactivity - a condition characterized by excessive restlessness and movement syndrome - a pattern of symptoms indicative of some disease |
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