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“PDD.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/PDD. Accessed 1 Dec. 2025.
Copy CitationMedical Definition
PDD
abbreviation
pervasive developmental disorder
Autism, Asperger syndrome, and pervasive developmental disorder-not otherwise specified (PDD-NOS) have been proposed to occur along a spectrum within PDD.—
Susan L. Hyman, The Journal of the American Medical Association
Susan L. Hyman, The Journal of the American Medical AssociationLove words? Need even more definitions?
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