PE may refer to:

Science and technology

Computing and telecommunication

* P/E cycle of flash memory * Phase encoding, another name for Manchester code *

Portable Executable The Portable Executable (PE) format is a file format for executables, object file, object code, Dynamic-link library, dynamic-link-libraries (DLLs), and binary files used on 32-bit and 64-bit Microsoft Windows, Windows operating systems, as well ...

, a computer file format *

Windows Preinstallation Environment Windows Preinstallation Environment (also known as Windows PE and WinPE) is a lightweight version of Windows used for the deployment of PCs, workstations, and servers, or troubleshooting an operating system while it is offline. It is intended t ...

, a lightweight version of Microsoft Windows *

Progressive enhancement Progressive enhancement is a strategy in web design that puts emphasis on web content first, allowing everyone to access the basic content and functionality of a web page, while users with additional browser features or faster Internet access r ...

, a strategy for web design * Protocol encryption, a feature of some peer-to-peer file-sharing clients *

Provider edge router A provider edge router (PE router) is a router between one network service provider's area and areas administered by other network providers. A network provider is usually an Internet service provider as well (or only that). The term ''PE rout ...

, a router between computer networks * Project Euler, a problem solving website

Medical conditions

* Pectus excavatum, a structural deformity of the anterior thoracic wall in which the sternum and rib cage are shaped abnormally *

Pleural effusion A pleural effusion is accumulation of excessive fluid in the pleural space, the potential space that surrounds each lung. Under normal conditions, pleural fluid is secreted by the parietal pleural capillaries at a rate of 0.6 millilitre per kilog ...

, excess fluid accumulation in the pleural cavity, the fluid-filled space surrounding the lungs *

Pre-eclampsia Pre-eclampsia is a multi-system disorder specific to pregnancy, characterized by the new onset of hypertension, high blood pressure and often a significant amount of proteinuria, protein in the urine or by the new onset of high blood pressure a ...

, a disorder of pregnancy *

Premature ejaculation Premature ejaculation (PE) is a male sexual dysfunction that occurs when a male Ejaculation, expels semen (and most likely experiences orgasm) soon after beginning sexual activity, and with minimal penile stimulation. It has also been called ''e ...

Pulmonary embolism Pulmonary embolism (PE) is a blockage of an pulmonary artery, artery in the lungs by a substance that has moved from elsewhere in the body through the bloodstream (embolism). Symptoms of a PE may include dyspnea, shortness of breath, chest pain ...

, a blockage of the pulmonary artery

Medical interventions

Penis enlargement Penis enlargement, or male enhancement, is any technique aimed to increase the size of a human penis. Some methods aim to increase total length, others the shaft's girth, and yet others the glans and foreskin size. Techniques include surgery, ...

Phenylephrine Phenylephrine, sold under the brand names Neosynephrine and Sudafed PE among others, is a medication used as a decongestant for uncomplicated nasal congestion in the form of a nasal spray or oral tablet, to dilate the pupil, to increase bloo ...

, a common over-the-counter decongestant * Phenytoin equivalent, used to measure doses of

fosphenytoin Fosphenytoin, also known as fosphenytoin sodium, and sold under the brand name Cerebyx among others, is a water-soluble phenytoin prodrug that is administered intravenously to deliver phenytoin, potentially more safely than intravenous phenytoi ...

Physical exercise Exercise or workout is physical activity that enhances or maintains fitness and overall health. It is performed for various reasons, including weight loss or maintenance, to aid growth and improve strength, develop muscles and the cardio ...

* Prolonged exposure therapy, a form of behavior therapy designed to treat posttraumatic stress disorder

Organic chemistry

Pentaerythritol Pentaerythritol is an organic compound with the formula C(CH2OH)4. The molecular structure can be described as a neopentane with one hydrogen atom in each methyl group replaced by a hydroxyl (–OH) group. It is therefore a polyol, specifically a ...

, a polyol *

, a common over-the-counter decongestant * Phenytoin equivalent, used to measure doses of

* Phosphatidyl ethanolamine *

Phycoerythrin Phycoerythrin (PE) is a red protein-pigment complex from the light-harvesting phycobiliprotein family, present in cyanobacteria, red algae and Cryptomonad, cryptophytes, accessory to the main chlorophyll pigments responsible for photosynthesis.The ...

, a water-soluble protein used as a fluorescent marker in microscopy and flow cytometry *

Polyethylene Polyethylene or polythene (abbreviated PE; IUPAC name polyethene or poly(methylene)) is the most commonly produced plastic. It is a polymer, primarily used for packaging (plastic bags, plastic films, geomembranes and containers including bott ...

, a common plastic polymer

Physics

Positron emission Positron emission, beta plus decay, or β+ decay is a subtype of radioactive decay called beta decay, in which a proton inside a radionuclide nucleus is converted into a neutron while releasing a positron and an electron neutrino (). Positron emi ...

, a type of radioactive decay *

Potential energy In physics, potential energy is the energy of an object or system due to the body's position relative to other objects, or the configuration of its particles. The energy is equal to the work done against any restoring forces, such as gravity ...

, the energy stored in a body or in a system due to its position in a force field or due to its configuration *

Proton emission Proton emission (also known as proton radioactivity) is a rare type of radioactive decay in which a proton is ejected from a atomic nucleus, nucleus. Proton emission can occur from high-lying excited states in a nucleus following a beta decay ...

, a type of radioactive decay * Protective earth, a type of electrical protective system *

Reduction potential Redox potential (also known as oxidation / reduction potential, ''ORP'', ''pe'', ''E_'', or E_) is a measure of the tendency of a chemical species to acquire electrons from or lose electrons to an electrode and thereby be reduced or oxidised respe ...

, the negative logarithm of electron activity

Other uses in science and technology

* AEG PE, a German World War I armored ground-attack aircraft * Population equivalent, a concept used in sanitary engineering * Present Era, a year numbering system commonly used in archaeology that uses 1950s as the epoch marker *

Professional Engineer A professional is a member of a profession or any person who works in a specified professional activity. The term also describes the standards of education and training that prepare members of the profession with the particular knowledge and ski ...

, a post-nominal suffix indicating such a certification *

Primary energy Primary energy (PE) is the energy found in nature that has not been subjected to any human engineered conversion process. It encompasses energy contained in raw fuels and other forms of energy, including waste, received as input to a system. Pri ...

, an energy form found in nature that has not been subjected to any human engineered conversion process * A US Navy hull classification symbol: Patrol escort (PE)

Arts and media

* "P.E." (''Cow and Chicken''), a 1998 television episode * ''Parasite Eve'' (video game), on the original PlayStation * ''Pineapple Express'' (film), a 2008 American action-comedy film starring Seth Rogen *

Power electronics (music) Power electronics is a style of noise music that typically consists of static, screeching waves of feedback, analogue synthesizers making sub-bass pulses or high frequency squealing sounds, with sometimes screamed and distorted vocals. The genre i ...

, a type of noise music * '' The Press-Enterprise'', a newspaper serving the Inland Empire in Southern California * Private eye, a character class in the MMORPG '' Neocron'' *

Public Enemy (group) Public Enemy is an American hip hop group formed in Roosevelt, New York, in 1985 by Chuck D and Flavor Flav. The group rose to prominence for their political messages including subjects such as American racism and the American media. Th ...

, a hip hop group from Long Island, New York * '' Minecraft: Pocket Edition'', the mobile version of the video game

In business and economics

* P/E ratio, or price-to-earnings ratio * ''

Performance Evaluation A performance appraisal, also referred to as a performance review, performance evaluation, (career) development discussion, or employee appraisal, sometimes shortened to "PA", is a periodic and systematic process whereby the job performance of ...

'', a journal *

, a post-nominal suffix indicating such a certification *

Private equity Private equity (PE) is stock in a private company that does not offer stock to the general public; instead it is offered to specialized investment funds and limited partnerships that take an active role in the management and structuring of the co ...

, equity investments in companies that are not traded on a public stock exchange *

Permanent establishment A permanent establishment (PE) is a fixed place of business that generally gives rise to income or value-added tax liability in a particular jurisdiction. The term is defined in many income tax treaties and in most European Union Value Added Tax ...

, a fixed place of business establishing taxable presence of a business in a host country

Businesses and organizations

* Air Europe Italy (IATA Code 1989–2008) *

People Express Airlines (1980s) People Express Airlines, stylized as PEOPLExpress, was a low-cost airline in the United States that operated from 1981 until it merged with Continental Airlines in 1987. Its headquarters was in the North Terminal (later Terminal C) of Newark ...

(IATA Code 1981–1987) *

Pacific Electric The Pacific Electric Railway Company, nicknamed the Red Cars, was a privately owned Public transport, mass transit system in Southern California consisting of electrically powered streetcars, interurban cars, and buses and was the largest electr ...

, a defunct Los Angeles rail transit company *

PerkinElmer PerkinElmer, Inc., previously styled Perkin-Elmer, is an American global corporation that was founded in 1937 and originally focused on precision optics. Over the years it went into and out of several different businesses via acquisitions and di ...

, an American technology company *

Army Police (Brazil) The Army Police () are the Military Police of the Brazilian Army. Their history dates back to 1944. In the Brazilian Army, the Military Police is a specialty of Infantry. The operational units are battalions and companies. Members of the Brazi ...

, (Portuguese: ''Polícia do Exército'') a Brazilian Army Police force * Army Police (Portugal), (Portuguese: ''Polícia do Exército'') a Portuguese Army Police force

Places

PE postcode area The PE postcode area, also known as the Peterborough postcode area, is a group of 36 postcode districts in eastern England, within 18 post towns. These cover north and west Cambridgeshire (including Peterborough, Huntingdon, Chatteris, St. Neots ...

, UK, covering Peterborough *

Pernambuco Pernambuco ( , , ) is a States of Brazil, state of Brazil located in the Northeast Region, Brazil, Northeast region of the country. With an estimated population of 9.5 million people as of 2024, it is the List of Brazilian states by population, ...

, a state of Brazil *

Peru Peru, officially the Republic of Peru, is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the south and west by the Pac ...

(ISO 3166-1 alpha-2 and NATO country code PE) *

Port Elizabeth Gqeberha ( , ), formerly named Port Elizabeth, and colloquially referred to as P.E., is a major seaport and the most populous city in the Eastern Cape province of South Africa. It is the seat of the Nelson Mandela Bay Metropolitan Municipal ...

, a city in South Africa *

Prince Edward Island Prince Edward Island is an island Provinces and territories of Canada, province of Canada. While it is the smallest province by land area and population, it is the most densely populated. The island has several nicknames: "Garden of the Gulf", ...

, a Canadian province

Other uses

Pakistani English Pakistani English (Paklish, Pinglish, PakEng, en-PK) is a group of English-language varieties spoken in Pakistan and among the Pakistani diaspora. English is the primary language used by the government of Pakistan, alongside Urdu, on the na ...

, the variant of English language spoken in Pakistan *

Physical education Physical education is an academic subject taught in schools worldwide, encompassing Primary education, primary, Secondary education, secondary, and sometimes tertiary education. It is often referred to as Phys. Ed. or PE, and in the United Stat ...

* Princess Elizabeth Challenge Cup, a rowing event at Henley Royal Regatta