# PPD

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> Markdown URL: https://mediated.wiki/source/PPD.md
> Source: https://en.wikipedia.org/wiki/PPD
> Source revision: 1314058340
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

**PPD** may refer to:

## Computing

- Prearranged Payment and Deposit; a payment format used in US inter-bank debit and credit transactions, part of the [ACH Network](/source/ACH_Network) specifications.
- [Pixels per degree](/source/Contrast_transfer_function), 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](/source/Folding@home) distributed computing project
- [PostScript Printer Description](/source/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](/source/Security_detail) tasked with protecting one or more persons
- [Philadelphia Police Department](/source/Philadelphia_Police_Department), a police agency in Pennsylvania, United States
- [Phoenix Police Department](/source/Phoenix_Police_Department), a police agency in Arizona, United States
- Presidential Protective Division, part of the [United States Secret Service](/source/United_States_Secret_Service) tasked with protecting the President and others
- Probation and Parole Division in [New Mexico](/source/New_Mexico), United States

## Political parties

- [Social Democratic Party (Portugal)](/source/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](/source/Partito_Popolare_Democratico_Svizzero)*, a political party in Switzerland
- [Party for Democracy (Chile)](/source/Party_for_Democracy_(Chile)) (*Partido por la Democracia*), a political party in Chile
- [Popular Democratic Party (Puerto Rico)](/source/Popular_Democratic_Party_(Puerto_Rico)) (*Partido Popular Democrático*), a political party in Puerto Rico

## Science and medicine

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

## Other

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

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Adapted from the Wikipedia article [PPD](https://en.wikipedia.org/wiki/PPD) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/PPD?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.