pervasive developmental disorder - Dictionary definition and pronunciation - Yahoo! Education

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Definition of pervasive developmental disorder

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< pervasive

perverse >

pervasive developmental disorder

NOUN:
Abbr. PDD

Any of several disorders, such as autism and Asperger's syndrome, characterized by severe deficits in many areas of development, including social interaction and communication, or by the presence of repetitive, stereotyped behaviors. Such disorders are usually evident in the first years of life and are often associated with some degree of mental retardation.

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