PPD
PPD is an abbreviation for:
- p-phenylenediamine , a chemical compound
- Partido por la Democracia , a social democratic party in Chile
- Partito popolare democratico svizzero , Italian name of the Christian Democratic People's Party of Switzerland (CVP Switzerland)
- Pinned photodiode , used for example in digital cameras
- an originally planned abbreviation for the Piratenpartei Deutschland , a German political party (the correct short form is PIRATEN)
- Postpartum depression , postpartum depression , see Postpartum Mood Crises # Postpartum Depression (PPD, Postpartum Depression)
- PostScript Printer Description , a file that describes a specific printer (is now also used for printer models without Postscript)
- PPD, a contract research company
- PPD-40 (Pistolet-Pulemjot Degtjarjowa) , was a Soviet submachine gun
- Published Price to Dealer (PPD = HAP retail price ), a type of contract in the music business
- Purified Protein Derivative , a special type of tuberculin test
