Word.ws English Dictionary

PDD

PDD is the initialism of pervasive developmental disorder.

PDD is the initialism of persistent depressive disorder.

PDD is the initialism of photodynamic diagnosis.

PDD is the initialism of Parkinson's disease dementia.

PDD is the initialism of People Demand Democracy.

Meaning of pervasive developmental disorder

Noun

pervasive developmental disorder (plural pervasive developmental disorders)

  1. Any of a group of disorders characterized by delays in the development of multiple basic functions including socialization and communication. They were five in the DSM-IV: Asperger syndrome, autism, childhood disintegrative disorder, Rett syndrome, and PDD-NOS.
    Synonyms:
    PDD

Meaning of persistent depressive disorder

Noun

persistent depressive disorder

  1. Synonym of dysthymia.
    Synonyms:
    PDD, dysthymia

Forms of PDD

pluralPDDs

Questions about PDD

What is PDD the initialism of?
PDD is the initialism of pervasive developmental disorder.

Words near PDD in the dictionary

  1. PDC
  2. PDCA
  3. PDCAAS
  4. PDCO
  5. PDCs
  6. PDD
  7. PDD-NOS
  8. PDDs
  9. PDE
  10. PDEA
  11. PDEs

Source and license

Adapted from Wiktionary: PDD (page history and authors); pervasive developmental disorder (page history and authors); persistent depressive disorder (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “PDD.” Word.ws, https://word.ws/pdd. Based on Wiktionary, CC BY-SA 4.0.