attention deficit hyperactivity disorder

attention deficit hyperactivity disorder

noun
a condition, usually in children, characterized by inattention, hyperactivity, and impulsiveness.

Origin:
1985–90
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Attention deficit hyperactivity disorder is always a great word to know.
So is ort. Does it mean:
the offspring of a zebra and a donkey.
a scrap or morsel of food left at a meal.
Collins
World English Dictionary
attention deficit hyperactivity disorder
 
n
ADHD a form of attention deficit disorder in which hyperactivity is a prominent symptom

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Science Dictionary
attention deficit hyperactivity disorder  
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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