PL
Appearance
PL, P.L., Pl, Pl., or .pl may refer to::
Businesses and organizations
Government and political
- Partido Laborista
- Partit Laburista, a Maltese political party
- Patriotic League (Bosnian: Patriotska Liga), a military organisation of the Republic of Bosnia and Herzegovina
- Philippine Legislature, a legislature that existed in the Philippines from 1907 to 1935
- Progressive Labor Party, a United States communist party
Sports leagues
- Pioneer Baseball League, a Rookie league in Minor League Baseball
- Pioneer Football League, NCAA FCS conference
- Premier League, the top English football league
- Pacific League, one of the two leagues in Japan's Nippon Professional Baseball
Other businesses and organizations
- Airstars Airways (IATA airline designator PL)
- AeroPeru (IATA airline designator PL)
- Papillion-La Vista Senior High School in Papillion, Nebraska, USA
- Public library, a library maintained by government for public use
Places
- PL postcode area, UK, a group of postcode districts in England
- Poland (ISO 3166-1 country code)
Religion
- PL Kyodan, a religious movement founded in Japan in the early 20th Century
- Patrologia Latina, a collection of Catholic writings published by Jacques-Paul Migne between 1841 and 1855
Science, technology, and mathematics
Chemistry
- Pyridoxal, one form of vitamin B6
- Pulchellidin (Pl), an anthocyanidin
Computing and telecommunications
File formats
- .pl, common filename suffix for Perl scripts
- .pl, common filename suffix for Prolog programs
- .pl, common filename suffix for TeX font property lists
Programming
- Procedural programming, a programming paradigm
- Programming language
Telecommunication and networking
- .pl, country code top-level domain for Poland
- PL tone, a kind of squelching of an audio signal
- Packet loss, one of the three main error types encountered in digital communications
- Path loss, in telecommunication engineering
- Presentation Layer, one of the seven layers in the OSI model of computer networking
- Digital Private Line, another form of tone squelching
Mathematics
- Piecewise linear, in mathematics
- Propositional logic, a system of evaluating truth-based propositions in terms of binary logic
Other uses in science and technology
- Ice pellets (METAR weather code PL)
- Picolitre (pL) and petaliter (PL), units of volume
- Pluto, a dwarf planet discovered by Percival Lowell
- Photoluminescence, the re-emission of photons from a surface following exposure
- Pierre Levasseur, a French aircraft designer
- Plastic limit, in geotechnical engineering
Other uses
- Platoon Leader in the US Army
- Plural, in grammar
- Polish language (ISO 639-1 code "pl")
- Private label, an arrangement between companies regarding the exclusive sale of goods
- Public law
- Public liability