PT, Pt, or pt may refer to:

Arts and entertainment

* ''P.T.'' (video game), acronym for ''Playable Teaser'', a short video game released to promote the cancelled video game ''Silent Hills'' *

Porcupine Tree Porcupine Tree are an English rock band formed by musician Steven Wilson in 1987. During an initial career spanning more than twenty years, they earned critical acclaim from critics and fellow musicians, developed a cult following, and became ...

, a British progressive rock group

In business

Businesses

Capital Cargo International Airlines Capital Cargo International Airlines, Inc. was a cargo airline based in Orlando, Florida, USA from 1995 to 2013. It provided on-demand and wet lease aircraft charter. Its main base was Orlando International Airport. It is owned by the Air Trans ...

(IATA airline designator PT) * West Air Sweden (IATA airline designator PT) *

Putnam Transit Putnam Transit or Putnam Area Rapid Transit (PART) is the provider of bus transit in Putnam County, New York. An agency of the Putnam County government, Putnam Transit came into service in the mid-1970s as a startup system in the wake of growing su ...

, a bus system that serves Putnam County, New York *

Portugal Telecom Altice Portugal (formerly known as Portugal Telecom or PT) is the largest telecommunications service provider in Portugal. Since June 2, 2015, the company has been a wholly owned subsidiary of Altice Europe, a multinational cable and telecommuni ...

, the largest telecommunications service provider in Portugal * ''

Piteå-Tidningen ''Piteå-Tidningen''(or ''PT'') is a regional newspaper published in the Piteå area of Norrbotten County, Sweden. It was founded in 1915. Piteå-Tidningen AB is owned by the labor movement in the Pite River valley, local unions and individual ...

'', a Swedish local newspaper

Business terminology

* Part-time job *

Perseroan Terbatas A business entity is an entity that is formed and administered as per corporate law in order to engage in business activities, charitable work, or other activities allowable. Most often, business entities are formed to sell a product or a servi ...

, the Indonesian name for a limited liability company

Political parties

* ''Partido dos Trabalhadores'' (Brazil) (Workers' Party), a Brazilian political party * ''Parti des travailleurs'' (France) (Workers' Party), a defunct French political party * ''Partido dos Trabalhadores'' (Guinea-Bissau) (Workers' Party), a Bissau-Guinean political party * ''Partido del Trabajo'' (Mexico) (Labor Party), a Mexican political party

Places

* Promontory or point, a prominent mass of land that overlooks lower-lying land or a body of water

Specific places

Portugal Portugal, officially the Portuguese Republic ( pt, República Portuguesa, links=yes ), is a country whose mainland is located on the Iberian Peninsula of Southwestern Europe, and whose territory also includes the Atlantic archipelagos of ...

(ISO country code PT) **

.pt .pt is the Internet country code top-level domain (ccTLD) for Portugal and is managed by Associação DNS.PT. It has the following second-level domains: * .com.pt: no restrictions; online registration * .edu.pt: education * .gov.pt: Governmen ...

, an Internet top-level domain name for Portugal **

Portuguese language Portuguese ( or, in full, ) is a western Romance language of the Indo-European language family, originating in the Iberian Peninsula of Europe. It is an official language of Portugal, Brazil, Cape Verde, Angola, Mozambique, Guinea-Bissau and ...

(ISO 639 alpha-2 code "pt") *

Palestinian territories The Palestinian territories are the two regions of the former British Mandate for Palestine that have been militarily occupied by Israel since the Six-Day War of 1967, namely: the West Bank (including East Jerusalem) and the Gaza Strip. The ...

, comprise the West Bank (including East Jerusalem) and the Gaza Strip * Pistoia, a city in Italy *

Port Townsend, Washington Port Townsend is a city on the Quimper Peninsula in Jefferson County, Washington, United States. The population was 10,148 at the 2020 United States Census. It is the county seat and only incorporated city of Jefferson County. In addition t ...

, a city in Jefferson County, Washington, in the United States * Pacific Time Zone, a time zone 8 hours behind UTC

Science, technology, and mathematics

Biology and medicine

* pt,

patient A patient is any recipient of health care services that are performed by healthcare professionals. The patient is most often ill or injured and in need of treatment by a physician, nurse, optometrist, dentist, veterinarian, or other hea ...

, a medical abbreviation * Physical therapy/Physiotherapy or Physical therapist/Physiotherapist * Pararosaniline,

Toluidine There are three isomers of toluidine, which are organic compounds. These isomers are ''o''-toluidine, ''m''-toluidine, and ''p''-toluidine, with the prefixed letter abbreviating, respectively, ''ortho''; ''meta''; and ''para''. All three are ary ...

histological stain *

Percutaneous {{More citations needed, date=January 2021 In surgery, a percutaneous procedurei.e. Granger et al., 2012 is any medical procedure or method where access to inner organs or other tissue is done via needle-puncture of the skin, rather than by using ...

surgery *

Pertussis toxin Pertussis toxin (PT) is a protein-based AB5-type exotoxin produced by the bacterium ''Bordetella pertussis'', which causes whooping cough. PT is involved in the colonization of the respiratory tract and the establishment of infection. Rese ...

, a protein-based exotoxin which causes whooping cough *

Petunidin Petunidin (Pt), like Europinidin and Malvidin, is derived from Delphinidin and is an O-methylated anthocyanidin of the 3-hydroxy type. It is a natural organic compound, a dark-red or purple water-soluble pigment found in many redberries includin ...

, an anthocyanidin plant pigment *

Prothrombin time The prothrombin time (PT) – along with its derived measures of prothrombin ratio (PR) and international normalized ratio (INR) – is an assay for evaluating the ''extrinsic'' pathway and common pathway of coagulation. This blood test is als ...

, a measurement of blood coagulation

Computing

, an Internet top-level domain name for Portugal * Panorama Tools, a suite of programs and libraries originally by Helmut Dersch * Pluggable Transport, an API in the Tor Project *

Penetration testing A penetration test, colloquially known as a pen test or ethical hacking, is an authorized simulated cyberattack on a computer system, performed to evaluate the security of the system; this is not to be confused with a vulnerability assessment ...

, checking to see how secure a computer system is

Physics and chemistry

Platinum Platinum is a chemical element with the symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name originates from Spanish , a diminutive of "silver". Pla ...

, symbol Pt, a chemical element *

Polythiophene Polythiophenes (PTs) are polymerized thiophenes, a sulfur heterocycle. The parent PT is an insoluble colored solid with the formula (C4H2S)n. The rings are linked through the 2- and 5-positions. Poly(alkylthiophene)s have alkyl substituents at ...

, a molecule *

Total pressure In physics, the term total pressure may indicate two different quantities, both having the dimensions of a pressure: For compressible flow the isentropic relations can be used (also valid for incompressible flow): : p_t=p\left(1+\fracM^2\right)^ ...

(P), in fluid dynamics

Transportation

PT boat A PT boat (short for patrol torpedo boat) was a motor torpedo boat used by the United States Navy in World War II. It was small, fast, and inexpensive to build, valued for its maneuverability and speed but hampered at the beginning of the war ...

, a type of small fast ship used by the US Navy in World War II *

Public transport Public transport (also known as public transportation, public transit, mass transit, or simply transit) is a system of transport for passengers by group travel systems available for use by the general public unlike private transport, typi ...

, or public transit *

Chrysler PT Cruiser The Chrysler PT Cruiser is a retro-styled compact car manufactured and marketed internationally by Chrysler in 5-door hatchback wagon (2001–2010) and 2-door convertible (2005–2008) body styles—over a single generation, with an intermedia ...

, a car model *

PT-91 The PT-91 Twardy (, en, Tough, link=no) is a Polish main battle tank. A development of the T-72M1, it entered service in 1995. The PT-91 was designed at the OBRUM (''Ośrodek Badawczo-Rozwojowy Urządzeń Mechanicznych'', or ''Research ...

, a military tank

Units of measurement

* Percentage point (pt), a unit for the arithmetic difference of two percentages * ''pt'', a measurement in the print industry for thickness of

card stock Card stock, also called cover stock and pasteboard, is paper that is thicker and more durable than normal writing and printing paper, but thinner and more flexible than other forms of paperboard. Card stock is often used for business cards, ...

Pint The pint (, ; symbol pt, sometimes abbreviated as ''p'') is a unit of volume or capacity in both the imperial and United States customary measurement systems. In both of those systems it is traditionally one eighth of a gallon. The British impe ...

(Pt.), a unit of volume or capacity * Point (typography) (Pt.), a unit of measure used in typography

Other uses in science, technology, and mathematics

* Permian-Triassic extinction event, a mass extinction between the Paleozoic and Mesozoic eras *

Peat Peat (), also known as turf (), is an accumulation of partially decayed vegetation or organic matter. It is unique to natural areas called peatlands, bogs, mires, moors, or muskegs. The peatland ecosystem covers and is the most efficient ...

, in the Unified Soil Classification System * Post-tensioned concrete, a reinforcement method in structural engineering * Potential transformer, an electrical component for changing voltage * Pressure treated wood

Sport

Personal trainer A personal trainer is an individual who creates and delivers safe and effective exercise programs for apparently healthy individuals and groups, or those with medical clearance to exercise. They motivate clients by collaborating to set goals, p ...

, in fitness and bodybuilding * Pro Tour (disambiguation)

Physical fitness

Physical education Physical education, often abbreviated to Phys Ed. or P.E., is a subject taught in schools around the world. It is usually taught during primary and secondary education, and encourages psychomotor learning by using a play and movement explorat ...

, known in many Commonwealth countries as physical training or PT *

Physical training instructor Physical training instructor (PTI) is a term used primarily in the British Armed Forces and British police, as well as some other Commonwealth countries, for an instructor in physical fitness. United Kingdom In the British Army, specialist Ph ...

, in the British & Commonwealth military; also in the British police * , physical training

Other uses

* Pandit, a Hindu honorific applied to certain scholars of law, religion, philosophy or music *

Perpetual traveler A perpetual traveler (also PT, permanent tourist or prior taxpayer) is a person who bases different aspects of their life in different countries, without spending too long in any one place, under the belief that they can reduce taxes, avoid civic ...

or "permanent tourist" * '' Perspectives on Terrorism'', an academic journal * '' Pro tempore'', a Latin phrase "for the time being" (temporary) *

Pyramid Texts The Pyramid Texts are the oldest ancient Egyptian funerary texts, dating to the late Old Kingdom. They are the earliest known corpus of ancient Egyptian religious texts. Written in Old Egyptian, the pyramid texts were carved onto the subterrane ...

, an ancient Egyptian funerary text *

Pussy torture Pussy torture (also known as vagina torture, cunt torture or female genitorture) is a BDSM or sexual activity involving the application of pain or pressure to a vulva or vagina, typically in the context of sadomasochism. It is sometimes conside ...

, a sexual activity involving pain or pressure applied to the human vagina or vulva.