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 In the United States, the ACH Network is the national automated clearing house (ACH) for electronic funds transfers established in the 1960s and 1970s. It is a financial utility owned by US banks, and is one of the largest payments networks i ...

specifications. * 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 Folding@home (FAH or F@h) is a distributed computing project aimed to help scientists develop new therapeutics for a variety of diseases by the means of simulating protein dynamics. This includes the process of protein folding and the movements ...

distributed computing project *

PostScript Printer Description PostScript Printer Description (PPD) files are created by vendors to describe the entire set of features and capabilities available for their PostScript printers. A PPD also contains the PostScript code (commands) used to invoke features for the ...

, 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 A security detail, often known as a PSD (protective services detail, personal security detachment, personal security detail) or PPD (personal protection detail), is a protective team assigned to protect the personal security of an individual or ...

tasked with protecting one or more persons *

Philadelphia Police Department The Philadelphia Police Department (PPD, Philly PD, or Philly Police) is the police agency responsible for law enforcement and investigations within the County and City of Philadelphia. The PPD is one of the oldest municipal police agencies, f ...

, a police agency in Pennsylvania, United States *

Phoenix Police Department The Phoenix Police Department is the law enforcement agency responsible for the city of Phoenix, Arizona. As of May 2024, the Phoenix Police Department comprises just over 2,500 officers, some 625 below authorized strength of 3,125 and more than ...

, a police agency in Arizona, United States * Presidential Protective Division, part of the

United States Secret Service The United States Secret Service (USSS or Secret Service) is a federal law enforcement agency under the Department of Homeland Security tasked with conducting criminal investigations and providing protection to American political leaders, thei ...

tasked with protecting the President and others * Probation and Parole Division in

New Mexico New Mexico is a state in the Southwestern United States, Southwestern region of the United States. It is one of the Mountain States of the southern Rocky Mountains, sharing the Four Corners region with Utah, Colorado, and Arizona. It also ...

, United States

Political parties

Social Democratic Party (Portugal) The Social Democratic Party ( , PSD) is a liberal-conservative political party in Portugal that is currently the country's ruling party. Commonly known by its colloquial initials PSD, on ballot papers its initials appear as its official form ...

(''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) The Party for Democracy (, PPD), also known as For Democracy () is a centre-left political party in Chile. It states to stand in the traditions of liberal progressivism.Party for Democracy. Declaration of Principles (1993), p. 6. ""The PPD is a ...

(''Partido por la Democracia''), a political party in Chile *

Popular Democratic Party (Puerto Rico) The Popular Democratic Party (, PPD) is a political party in Puerto Rico that advocates to continue as a Commonwealth of the United States with self-governance. The party was founded in 1938 by dissidents from the Puerto Rican Liberal Party and ...

(''Partido Popular Democrático''), a political party in Puerto Rico

Science and medicine

Paranoid personality disorder Paranoid personality disorder (PPD) is a mental disorder characterized by paranoia, and a pervasive, long-standing suspiciousness and generalized mistrust of others. People with this personality disorder may be hypersensitive, easily insulted, ...

, 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 measure of UVA protection of sunscreens *

Pharmaceutical Product Development Pharmaceutical Product Development (PPD) is a global contract research organization (CRO) providing comprehensive, integrated drug development, laboratory and lifecycle management services. In December 2021, PPD became a wholly owned subsidiary ...

, a global contract research organization (CRO) *

Pheophorbidase Pheophorbidase (EC 3.1.1.82, phedase, PPD) is an enzyme with systematic name pheophorbide-''a'' hydrolase. It catalyses the following reaction: : pheophorbide ''a'' + H2O \rightleftharpoons pyropheophorbide ''a'' + methanol + CO2 (overall react ...

, an enzyme * PPD test, Purified Protein Derivative test or Mantoux test, a screening test for tuberculosis *

Postpartum depression Postpartum depression (PPD), also called perinatal depression, is a mood disorder which may be experienced by pregnant or postpartum women. Symptoms include extreme sadness, low energy, anxiety, crying episodes, irritability, and extreme cha ...

, a mental disorder affecting parents within the first year of their child's birth *

Pour point depressant Pour point depressants are used to allow the use of petroleum based mineral oils at lower temperatures. The lowest temperature at which a fuel or oil will pour is called a pour point. Wax crystals, which form at lower temperatures, may interfere wit ...

, a chemical added to crude oil to lower its "pour point" * ppd,

Protopanaxadiol Protopanaxadiol (PPD) is an organic compound that is an aglycone of ginsenosides, a group of steroid glycosides. It is a dammarane-type tetracyclic terpene sapogenin found in ginseng (''Panax ginseng'') and in notoginseng (''Panax pseudoginseng ...

, a molecule *

Psychogenic polydipsia Primary polydipsia and psychogenic polydipsia are forms of polydipsia characterised by excessive fluid intake in the absence of physiological stimuli to drink. Psychogenic polydipsia caused by psychiatric disordersoftentimes schizophreniais frequ ...

, excessive water intake with a psychiatric or pharmaceutical cause *

Postharvest physiological deterioration In agriculture, postharvest handling is the stage of crop production immediately following harvest, including cooling, cleaning, sorting and packing. The instant a crop is removed from the ground, or separated from its parent plant, it begins to ...

, 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! , also known by the title of its anime adaptation, , is a Japanese manga series by Hekiru Hikawa that uses parody, frequently referencing Japanese and American pop-culture in many ways. It mainly follows child prodigy Rebecca Miyamoto, an MIT ...

'', a Japanese manga series *

Partners in Population and Development Partners in Population and Development (PPD) is a Southern-led, Southern-run global inter-governmental organization of 28 developing countries with commitment to promote south-south cooperation (SSC) in the field of reproductive health, population ...

, an international intergovernmental organization for "southern" countries worldwide *

Pengangkutan Penumpang Djakarta Perusahaan Umum Pengangkutan Penumpang Djakarta (lit. ''Djakarta Passenger Transport Public Corporation'') simplified as Perum PPD or PPD, was an Indonesian statutory corporation operating land transportation in Jakarta and the surrounding area ...

, a bus operator in Jakarta, Indonesia *

Pontypridd railway station Pontypridd railway station serves the town of Pontypridd in Rhondda Cynon Taf, Wales. It is located at the junction of the Merthyr line and the Rhondda line and has for many years been the only station serving the town. Until the 1930s, Pontyp ...

, Wales, its National Rail station code * ppd, an American professional video game player *

PPD-40 The PPD () is a submachine gun originally designed in 1934 by Vasily Degtyaryov. The PPD had a conventional wooden stock, fired from an open bolt, and was capable of selective fire. It was replaced by the PPSh-41. History Developed in the Sovi ...

, a Russian submachine gun *

Prevention Project Dunkelfeld The Prevention Project Dunkelfeld (PPD) is an effort founded in Germany to provide clinical and support services to people who are sexually attracted to children ( pedophiles and hebephiles) and want help controlling their sexual urges, but are ot ...

, 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 National security directives are presidential directives issued for the National Security Council (NSC). Starting with Harry Truman, every president since the founding of the National Security Council in 1947 has issued national security directi ...

from the Obama presidency {{disambiguation