noun
pervasive developmental disorder; PDD
Medical term for a group of disorders characterized by delays in the development of socialization and communication skills. In modern clinical use, often replaced by autism spectrum disorder (ASD).
広汎性発達障害は、自閉症スペクトラム障害に含まれる概念です。
Pervasive developmental disorder is a concept included within autism spectrum disorder.
彼は広汎性発達障害と診断された。
He was diagnosed with pervasive developmental disorder.