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attention deficit disorder

The definition of attention deficit disorder, or ADD, is a syndrome of impulsiveness, short attention span and hyperactivity.

(noun)

An example of attention deficit disorder is a behavioral disorder that primarily affects young boys and causes them to be impulsive and unable to pay attention.

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See attention deficit disorder in American Heritage Dictionary 4

noun Abbr. ADD
A syndrome, usually diagnosed in childhood, characterized by a persistent pattern of impulsiveness, a short attention span, and often hyperactivity, and interfering especially with academic, occupational, and social performance.

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