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 processes financial transactions for consumers, businesses, and federal, state, and loca ...

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 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 *

Portable Programmer Device Portable may refer to: General * Portable building, a manufactured structure that is built off site and moved in upon completion of site and utility work * Portable classroom, a temporary building installed on the grounds of a school to provide a ...

, Device used to program programmable ic

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, 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) The Social Democratic Party ( pt, Partido Social Democrata, ; PSD) is a liberal-conservative political party in Portugal. Commonly known by its colloquial initials PSD, on ballot papers its initials appear as its official form PPD/PSD, with the ...

(''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 The Christian Democratic People's Party of Switzerland (german: Christlichdemokratische Volkspartei der Schweiz, CVP), also called the Christian Democratic Party (french: Parti démocrate-chrétien, PDC), Democratic People's Party ( it, Partito P ...

'', a political party in Switzerland * Party for Democracy (Chile) (''Partido por la Democracia''), a political party in Chile *

Popular Democratic Party (Puerto Rico) The Popular Democratic Party ( es, Partido Popular Democrático, 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 ...

(''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 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 subsidiar ...

, 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 rea ...

, an enzyme *

PPD test The Mantoux test or Mendel–Mantoux test (also known as the Mantoux screening test, tuberculin sensitivity test, Pirquet test, or PPD test for purified protein derivative) is a tool for screening for tuberculosis (TB) and for tuberculosis diagn ...

, 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 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, 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 which is caused by psychiatric disorders, often schizophrenia, i ...

, 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. 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 ...

, 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 features several first year students and their teach ...

'', a Japanese manga series *

Partners in Population and Development Partners in Population and Development (PPD) is an intergovernmental initiative created specifically for the purpose of expanding and improving South-to-South collaboration in the fields of reproductive health, population, and development. PPD was l ...

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

Pengangkutan Penumpang Djakarta Perusahaan Umum Pengangkutan Penumpang Djakarta (lit. ''Jakarta#Etymology, Djakarta Passenger Transport Public Company'', simplified as Perum PPD) is an Indonesian Ministry of State Owned Enterprises (Indonesia), state-owned company that moves ...

, 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, Po ...

, Wales, its National Rail station code * 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 In the music industry, the Published Price to Dealer (PPD) is the wholesale unit price A product's average price is the result of dividing the product's total sales revenue by the total units sold. When one product is sold in variants, such as bo ...

, a music industry term designating unit price * Presidential Policy Directive, a kind of national security directive from the Obama presidency {{disambiguation