PE

PE may refer to:

Computing and telecommunication

 * P/E cycle of flash memory
 * Phase encoding, another name for Manchester code
 * Portable Executable, a computer file format
 * Windows Preinstallation Environment, a lightweight version of Microsoft Windows
 * Progressive enhancement, a strategy for web design
 * Protocol encryption, a feature of some peer-to-peer file-sharing clients
 * Provider edge router, 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, excess fluid accumulation in the pleural cavity, the fluid-filled space surrounding the lungs
 * Pre-eclampsia, a disorder of pregnancy
 * Premature ejaculation
 * Pulmonary embolism, a blockage of the pulmonary artery

Medical interventions

 * Penis enlargement
 * Phenylephrine, a common over-the-counter decongestant
 * Phenytoin equivalent, used to measure doses of fosphenytoin
 * Physical exercise
 * Prolonged exposure therapy, a form of behavior therapy designed to treat posttraumatic stress disorder

Organic chemistry

 * Pentaerythritol, a polyol
 * Phenylephrine, a common over-the-counter decongestant
 * Phenytoin equivalent, used to measure doses of fosphenytoin
 * Phosphatidyl ethanolamine
 * Phycoerythrin, a water-soluble protein used as a fluorescent marker in microscopy and flow cytometry
 * Polyethylene, a common plastic polymer

Physics

 * Positron emission, a type of radioactive decay
 * Potential energy, 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, a type of radioactive decay
 * Protective earth, a type of electrical protective system
 * Reduction potential, 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 post-nominal suffix indicating such a certification
 * Primary energy, 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), 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), 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 journal
 * Professional Engineer, a post-nominal suffix indicating such a certification
 * Private equity, equity investments in companies that are not traded on a public stock exchange
 * Permanent establishment, 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) (IATA Code 1981–1987)
 * Pacific Electric, a defunct Los Angeles rail transit company
 * PerkinElmer, an American technology company
 * Army Police (Brazil), (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, UK, covering Peterborough
 * Pernambuco, a state of Brazil
 * Peru (ISO 3166-1 alpha-2 and NATO country code PE)
 * Port Elizabeth, a city in South Africa
 * Prince Edward Island, a Canadian province

Other uses

 * Pakistani English, the variant of English language spoken in Pakistan
 * Physical education
 * Princess Elizabeth Challenge Cup, a rowing event at Henley Royal Regatta