All articles starting with P

Pez

PEZ (PfeffErminZ) is an Austrian compressed peppermint candy created by Eduard Haas III in 1927, famous for its character-headed dispensers introduced in 1949 and made by PEZ AG (Traun) and PEZ Candy Inc. (Orange, Connecticut).

Pezizaceae

Pezizaceae (cup fungus family), formerly including Terfeziaceae, is a family of Pezizales ascomycetes containing Peziza and desert truffles like Terfezia and Tirmania; asci blue in iodine, truffle forms evolved independently at least three times.

Pezizales

Pezizales (Tuberales, synonym) is a fungal order in class Pezizomycetes, Ascomycota, holding cup fungi, morels, Helvella, Peziza, and truffles, with operculate asci, about 23 families and 2000 species.

PF (firewall)

PF (Packet Filter) is OpenBSD's system for filtering TCP/IP traffic and performing Network Address Translation; developed by Daniel Hartmeier, it has been part of the standard kernel since OpenBSD 3.0.

PF-1000

PF-1000 is a large Mather-type dense plasma focus device at the Institute of Plasma Physics and Laser Microfusion in Warsaw, Poland, described as the world's largest plasma-focus device.

PF4

PF4, also called CXCL4 or platelet factor 4, is a 70-amino-acid, 7.8 kDa cationic CXC chemokine stored in platelet alpha granules, released on activation, heparin-binding, angiostatic, and central to HIT and VITT anti-PF4 antibody disorders.

Oct 10, 2026

PFA DK

PFA, formally PFA Pension forsikringsaktieselskab, is a Danish customer-owned pension and life insurance company founded in 1917. Denmark's largest commercial pension company, it serves about 1.3 million customers and manages roughly DKK 690 billion.

PFA Players' Player of the Year

PFA Players' Player of the Year, the English football award voted by Professional Footballers' Association members since 1973-74 (first winner Norman Hunter). 2026 winners: Bruno Fernandes (men) and Bunny Shaw (women).

PFA Team of the Year (1990s)

PFA Team of the Year (1990s): annual Professional Footballers' Association XIs for English seasons 1990-91 to 1999-2000, voted by players, spanning First Division and early Premier League eras; Seaman, Platt, Hughes, Cantona, Ginola featured.

PFA Team of the Year (2010s)

PFA Team of the Year (2010s): the ten Professional Footballers' Association Premier League XIs for 2009-10 to 2018-19, voted by players; 2018-19 was six Man City and four Liverpool players plus Pogba.

PFA Young Player of the Year

PFA Young Player of the Year, the Professional Footballers' Association's annual award for the outstanding young player in English football, first won by Mervyn Day in 1974-75; recent winners include Foden, Saka, Palmer, Rogers, and O'Reilly.

Pfaffenhofen

Pfaffenhofen names several German places, chiefly Pfaffenhofen an der Ilm, an Upper Bavarian district town rebuilt after the 1388 fire, with a 78 m church tower; also Pfaffenhofen a.d. Roth and a Zabergäu town.

Pfaffian

The Pfaffian is a polynomial in the entries of a skew-symmetric matrix whose square equals the determinant, defined for even-order matrices and named by Cayley in 1852.

Pfaffian constraint

A Pfaffian constraint is a constraint on a mechanical system's motion that is linear in the generalized velocities; nonintegrable cases are nonholonomic, like a car that cannot slide sideways.

Oct 20, 2026

Pfälzerwald / Vosges du Nord Biosphere Reserve

Pfälzerwald / Vosges du Nord Biosphere Reserve, a UNESCO MAB transboundary biosphere reserve designated December 1998, the first in the EU, covering 3,061.6 km² of sandstone forest across the French-German border.

Pfam

Pfam is a database of protein families and domains, first described in 1997, that uses profile hidden Markov models to identify domains in protein sequences.

PFC CSKA Moscow

PFC CSKA Moscow (ПФК ЦСКА), founded 1911 as OLLS, is a Russian Premier League club and the first Russian side to win a major European trophy, the 2005 UEFA Cup, beating Sporting CP 3-1 in Lisbon.

PFC CSKA Sofia

PFC CSKA Sofia (ПФК ЦСКА София), founded 1948 as Bulgaria's army club, record 31 Bulgarian titles, two European Cup semi-finals, Eternal Derby rival of Levski; original club bankrupt 2015, present club is renamed Litex Lovech, rival phoenix CSKA 1948 exists.

PFC Levski Sofia

PFC Levski Sofia (ПФК Левски София), founded 24 May 1914, is a Bulgarian football club with 27 titles and 27 cups; 2025/26 champion under Julio Velázquez, owned by Atanas Bostandjiev since April 2026.

PFC Ludogorets Razgrad

PFC Ludogorets Razgrad (ПФК Лудогорец Разград), founded 1945, is a Bulgarian football club that won 14 consecutive league titles from 2012, reached two Champions League group stages, and plays at Huvepharma Arena.

Pfeiffer

Pfeiffer (ATCC CRL-2632, CVCL_3326) is a human B lymphocyte cell line established in 1992 from pleural effusion of an adult male with diffuse large B-cell lymphoma; EBV-negative, CD10/CD19/CD20/CD38-positive, IgG kappa, t(14;18), used to study non-Hodgkin lymphoma.

Pfeiffer syndrome

Pfeiffer syndrome (acrocephalosyndactyly type V, Noack syndrome) is a rare autosomal dominant craniosynostosis disorder from FGFR1/FGFR2 mutations, with broad thumbs and big toes, three clinical subtypes, and about 1 in 100,000 frequency.

Oct 22, 2026

PffBT4T-2OD

PffBT4T-2OD, also known as PCE11, is a low band gap donor polymer used in bulk-heterojunction organic solar cells, notable for its high efficiency in thick active layers around 300 nm.

Pfizer

Pfizer is an American research-based global biopharmaceutical company headquartered in New York, founded in Brooklyn in 1849 by cousins Charles Pfizer and Charles Erhart, and now one of the world's largest pharmaceutical companies.

Pfizer Building

The Pfizer Building is an International Style office tower at 235 East 42nd Street in Midtown Manhattan, Pfizer's world headquarters from 1961 until it vacated in 2023.

Pfizer–BioNTech COVID-19 vaccine

The Pfizer–BioNTech COVID-19 vaccine, sold as Comirnaty, is an mRNA vaccine developed by Germany's BioNTech with Pfizer, first authorized in late 2020 and about 95% effective in trials.

Pfizergate

Pfizergate: controversy over undisclosed SMS between EU Commission President Ursula von der Leyen and Pfizer CEO Albert Bourla negotiating a 1.8-billion-dose COVID-19 vaccine contract; Ombudsman found maladministration and the General Court annulled the refusal in 2025.

PFKFB3

PFKFB3 (6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 3) is a bifunctional glycolysis-regulating enzyme producing fructose-2,6-bisphosphate, overexpressed in many cancers and targeted by inhibitors such as 3PO, PFK15, and PFK-158.