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attention deficit hyperactivity disorder

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attention deficit hyperactivity disorder

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

Origin:
1985–90
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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attention deficit hyperactivity disorder  
n.   Abbr. ADHD
Attention deficit disorder in which hyperactivity is present.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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