Pervasive Developmental Disorder Definition

pər-vāsĭv
noun
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.
American Heritage
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Other Word Forms of Pervasive Developmental Disorder

Noun

Singular:
pervasive developmental disorder
Plural:
pervasive-developmental-disorders

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