View source for PPD

'''PPD''' may refer to:
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==Computing==
* Prearranged Payment and Deposit; a payment format used in US inter-bank debit and credit transactions, part of the [[ACH Network]] specifications.
* [[Contrast transfer function|Pixels per degree]], a measure of the resolution of a display screen as seen from an angle
* Points per day, a mechanism for measuring work done in the [[Folding@home]] distributed computing project
* [[PostScript Printer Description]], a file created by a printer vendor that describes the entire set of capabilities of a particular PostScript printer model

==Police and security==
* Personal protection detail, a [[security detail]] tasked with protecting one or more persons
* [[Philadelphia Police Department]], a police agency in Pennsylvania, United States
* [[Phoenix Police Department]], a police agency in Arizona, United States
* Presidential Protective Division, part of the [[United States Secret Service]] tasked with protecting the President and others
* Probation and Parole Division in [[New Mexico]], United States

==Political parties==
* [[Social Democratic Party (Portugal)]] (''Partido Social Democrata''), originally named Popular Democratic Party or Democratic People's Party (''Partido Popular Democrático)'', a political party in Portugal
* ''[[Partito Popolare Democratico Svizzero]]'', a political party in Switzerland
* [[Party for Democracy (Chile)]] (''Partido por la Democracia''), a political party in Chile
* [[Popular Democratic Party (Puerto Rico)]] (''Partido Popular Democrático''), a political party in Puerto Rico

==Science and medicine==
* [[Paranoid personality disorder]], a mental disorder characterized by paranoia and a pervasive, long-standing suspiciousness and generalized mistrust of others.
* [[p-Phenylenediamine]], an aromatic amine
* Persistent Pigment Darkening, a [[Sunscreen#Measurements of protection|measure of UVA protection of sunscreens]]
* [[Pharmaceutical Product Development]], a global contract research organization (CRO)
* [[Pheophorbidase]], an enzyme
* [[Mantoux test|PPD test]], Purified Protein Derivative test or Mantoux test, a screening test for tuberculosis
* [[Postpartum depression]], a mental disorder affecting parents within the first year of their child's birth
* [[Pour point depressant]], a chemical added to crude oil to lower its "pour point"
* ppd, [[Protopanaxadiol]], a molecule
* [[Psychogenic polydipsia]], excessive water intake with a psychiatric or pharmaceutical cause
* [[Postharvest physiological deterioration]], natural change of crop tissues which is undesirable for human or livestock use

==Other==
* [[PPD, Inc.]], an American contract clinical trial company.
* ''[[Pani Poni Dash!]]'', a Japanese manga series 
* [[Partners in Population and Development]], an international intergovernmental organization for "southern" countries worldwide
* [[Pengangkutan Penumpang Djakarta]], a bus operator in Jakarta, Indonesia
* [[Pontypridd railway station]], Wales, its National Rail station code
* [[ppd (video game player)|ppd]], an American professional video game player
* [[PPD-40]], a Russian submachine gun
* [[Prevention Project Dunkelfeld]], an effort to help self-identifying pedophiles to stay offence free
* [[Published Price to Dealer]], a music industry term designating unit price
* Presidential Policy Directive, a kind of [[national security directive]] from the Obama presidency

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