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]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
| Noun | 1. | attention deficit hyperactivity disorder - a condition (mostly in boys) characterized by behavioral and learning disordershyperactivity - a condition characterized by excessive restlessness and movement syndrome - a pattern of symptoms indicative of some disease |
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.