PD

PD, P.D., or Pd may refer to:

Arts and media

• People's Democracy (newspaper), weekly organ of the Communist Party of India (Marxist)
• The Plain Dealer, a Cleveland, Ohio, US newspaper
• Post Diaspora, a time frame in the Honorverse series of science fiction novels
• Principia Discordia, a holy text in Discordianism
• Production designer, a profession in film or television
• Production diary, a promotional video podcast

Economics and business

• Personnel department, also known as Human Resources Department (HRD)
• Probability of default, used in finance (Basel II)
• Professional degree, or first professional degree
• Professional development
• Price discrimination, a microeconomic pricing strategy
• Program director, in service industries

Enterprises

• Phelps Dodge, a former American mining company, now part of Freeport-McMoRan
• Polyphony Digital, developer of the Gran Turismo video game series
• Porter Airlines (IATA airline designator)

Government and law

• Police department
• Preventive detention
• Property damage liability, in insurance
• Public defender
• Public domain

Places

• PD Draw, a bridge over the Passaic River
• Province of Padua, Italy (ISO 3166-2:IT)
• Port Dickson, a coastal city in Negeri Sembilan, Malaysia4ל

Political parties

• Democratic Party of Albania (Partia Demokratike)
• Democratic Party (Indonesia) (Partai Demokrat)
• Democratic Party (Italy) (Partito Democratico)
• Democratic Party (Malta) (Partit Demokratiku)
• Democratic Party (Romania) (Partidul Democrat)
• Democratic Party – demokraci.pl (Partia Demokratyczna – demokraci.pl), Poland
• Party of Democrats (Partito dei Democratici), a defunct political party in San Marino
• People's Democracy (Ireland), a defunct political organization in Ireland
• Progressive Democrats, a defunct political party in the Republic of Ireland

Professions

• Doctor of Pharmacy, also abbreviated PharmD
• Postdoctoral research position or course of study, also known as a "post-doc"
• Privatdozent, a title or position especially in German universities
• Production designer, a profession in film or television

Science, technology, and mathematics

Biology and medicine

Disorders and symptoms

• Panic disorder, a condition with excessive fear or anxiety
• Parkinson's disease, a degenerative neurological condition
• Paroxysmal dyskinesia, a group of movement disorders
• Personality disorder, any of various psychiatric problems
• Polydipsia, excessive thirst
• Progressive disease, in oncology
• Psychotic depression

Medical techniques and specialties

• Pd test, the outcome of using a drop of para-phenylenediamine (also abbr. "Pd") to identify lichens
• Pediatric dentistry, mouth health care and tooth repair for children
• Peritoneal dialysis, a way to filter the blood when the kidneys are not working well
• Pharmacodynamics, the study of how a drug affects an organism
• Physical diagnosis, the aspects of diagnosis based on the physical examination

Other uses in biology and medicine

• PD-1, a cell surface receptor protein
• Paleolithic diet, a diet based on presumed ancient diets
• Phenyldichloroarsine, a blister agent
• Pupillary distance, in optometry

Computing

• Pentium D, a dual-core variant of the Pentium 4 processor
• Perfect Dark (P2P), a Japanese peer-to-peer file-sharing (P2P) application designed for use with Microsoft Windows
• Phase-change Dual, an optical media format
• Pure Data the graphical audio-processing language

Other uses in science, technology, and mathematics

• Palladium, a chemical element with symbol Pd
• Partial discharge, an undesirable discharge phenomenon in high voltage dielectrics
• Photodiode, a semiconductor device that converts light into current
• Point-defence, a category of weapons
• Potential difference, or voltage
• Axiom of projective determinacy, in mathematical logic
• Pumpe Düse, a Volkswagen Group name for Unit Injector diesel engine technology

Other uses

• Full stop (or period, in American English), used in coded military communications
• Personal development, as used in the self-help and personal growth fields
• Peu difficile, a French climbing/mountaineering grade

See also

• Pee Dee
• Pound (mass)