PCT, P.C.T. or pct may refer to:

Math, science and technology

* pct, an abbreviation for "%" ( percentage) *

PCT theorem Charge, parity, and time reversal symmetry is a fundamental symmetry in physics, symmetry of physical laws under the simultaneous transformation (mathematics), transformations of charge conjugation (C), parity transformation (P), and T-symmetry, ...

, on parity, charge and time inversions *

Perceptual control theory Perceptual control theory (PCT) is a model of behavior based on the properties of negative feedback control loops. A control loop maintains a sensed variable at or near a reference value by means of the effects of its outputs upon that variable, as ...

, a model of behavior * Personal Communication Telephone, a mobile telephone service *

Polychlorinated terphenyl Polychlorinated terphenyls (PCTs) are a group of chlorine derivatives of terphenyls. They are chemically related to polychlorinated biphenyls and have similar chemical properties. They have very low electrical conductivity, high heat stability ...

, an industrial chemical * Polycyclohexylenedimethylene terephthalate, a thermoplastic polyester * Private Communications Technology, an obsolete Internet security protocol * Programmable communicating thermostat, California, US term * Projected capacitive touchscreen technology

Medicine

Patient care technician Unlicensed assistive personnel (UAP) are paraprofessionals who assist individuals with physical disabilities, mental impairments, and other health care needs with their activities of daily living (ADLs). UAPs also provide bedside care—inclu ...

Person-centered therapy Person-centered therapy, also known as person-centered psychotherapy, person-centered counseling, client-centered therapy and Rogerian psychotherapy, is a form of psychotherapy developed by psychologist Carl Rogers beginning in the 1940s and ex ...

Porphyria cutanea tarda Porphyria cutanea tarda is the most common subtype of porphyria. The disease is named because it is a porphyria that often presents with skin manifestations later in life. The disorder results from low levels of the enzyme responsible for the fift ...

, the most common subtype of porphyria *

Postcoital test The postcoital test (PCT), also known as the Sims test, Huhner test or Sims–Huhner test, is a test in the evaluation of infertility. The test examines interaction between sperm and mucus of the cervix. The PCT examines sperm survival in cervic ...

, for infertility *

Post-coital tristesse Post-coital tristesse (PCT), also known as post-coital dysphoria (PCD), and colloquially post-nut clarity, is the feeling of sadness, anxiety, agitation or aggression, after sexual intercourse or masturbation. Its name comes from New Latin ''p ...

* Pragmatic clinical trial * Primary care trusts, UK NHS bodies 2001–2013 * Procalcitonin, a precursor of the hormone calcitonin *

Progestogen challenge test The progestogen challenge test, or progesterone withdrawal test, is a test used in the field of obstetrics and gynecology to evaluate a patient who is experiencing amenorrhea. Due to readily available assays to measure serum estradiol levels, thi ...

Proximal convoluted tubule The proximal tubule is the segment of the nephron in kidneys which begins from the renal pole of the Bowman's capsule to the beginning of loop of Henle. It can be further classified into the proximal convoluted tubule (PCT) and the proximal straig ...

, in the kidney * Proton computed tomography (pCT), or proton CT

Places

Pacific Crest Trail The Pacific Crest Trail (PCT), officially designated as the Pacific Crest National Scenic Trail, is a long-distance hiking and equestrian trail closely aligned with the highest portion of the Cascade and Sierra Nevada mountain ranges, which lie ...

, US hiking trail from Mexico–US to Canada–US border *

Potomac Consolidated TRACON Potomac TRACON (Terminal Radar Approach CONtrol), abbreviated PCT, is the FAA air traffic control facility in charge of the Washington, D.C. airspace and Washington Special Flight Rules Area, assigning squawk codes. It is based in Warrenton, Virgi ...

, FAA facility designation * Princeton Airport (New Jersey), Montgomery Township, New Jersey, US, IATA code

Politics

* Communist Party of Togo (French: ''Parti Communiste du Togo'') *

Congolese Party of Labour The Congolese Party of Labour (french: Parti congolais du travail, PCT) is the ruling party of the Republic of the Congo. Founded in 1969 by Marien Ngouabi, it was originally a pro-Soviet, Marxist–Leninist vanguard party which founded the P ...

(French: ''Parti Congolais du Travail'') *

Tunisian Communist Party The Tunisian Communist Party ( ar, الحزب الشيوعي التونسي ' ; french: Parti Communiste Tunisien) was a Marxist political party in Tunisia. The PCT was founded on 21 May 1934 as the Tunisian federation of the French Communist P ...

(French: ''Parti Communiste Tunisien'')

Other

* P.C.T, hip-hop musicians * Paleolithic continuity theory, suggesting the Proto-Indo-European language comes from the Upper Paleolithic *

Patent Cooperation Treaty The Patent Cooperation Treaty (PCT) is an international patent law treaty, concluded in 1970. It provides a unified procedure for filing patent applications to protect inventions in each of its contracting states. A patent application filed und ...

, an international patent treaty *

Pennsylvania College of Technology Pennsylvania College of Technology (Penn College) is a public college in Williamsport, Pennsylvania. It is affiliated with, but a self-governing entity of, Pennsylvania State University. As an applied technology college (known by the locals and ...

* Phi Chi Theta, fraternity *

Presbyterian Church in Taiwan The Presbyterian Church in Taiwan (PCT; ; ) is the largest Protestant Christian denomination based in Taiwan. The PCT is a member of the World Council of Churches, and its flag features a "Burning Bush," which signifies the concept of burning y ...

* ''Production Car Trial'' – see

classic trials Classic trials, or colloquially mud plugging, is one of the oldest forms of rallying or off-road motor sports, dating from the beginning of the 20th century. Originally, the challenge was just to complete a long (challenging) road course. All thre ...

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