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All articles starting with P

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Pitman Fracture Zone

Pitman Fracture Zone, formerly Fracture Zone XII, a right-stepping fracture zone on the Pacific-Antarctic Ridge at about 65 degrees S; initiated at chron C27, named for Walter C. Pitman III, records 65 Myr of plate motion and late Neogene transtension.

Pitman shorthand

Pitman shorthand, Isaac Pitman's phonetic shorthand system first published as Stenographic Sound-Hand in 1837, writes English by sound using thick and thin strokes, position writing, and dot-and-dash vowels; with Gregg it dominated English stenography.

Pitman–Yor process

The Pitman–Yor process, also known as the two-parameter Poisson–Dirichlet process, is a Bayesian nonparametric prior over probability measures that generalizes the Dirichlet process by adding a discount parameter, producing power-law behavior useful in language modeling.

Pitney

Pitney, a village and parish near Langport in Somerset, England, site of a scheduled minor Romano-British villa ('The Pitney Villa') excavated by Samuel Hassell in 1828-9, occupied 3rd-4th centuries AD, and a Domesday manor held by Humphrey in 1086.

Pitney Bowes

Pitney Bowes, founded in 1920, is an American company best known as maker of the first commercially used postage meter, now providing shipping and mailing technology.

Piton

Piton (French for "peak" or "pin"): a metal spike with an eye, hammered into rock or ice cracks as a fixed climbing anchor. Dominated climbing until the 1972 clean-climbing turn; now mainly alpine, aid, and emergency use.

Piton des Neiges

Piton des Neiges is a dormant shield volcano on Réunion Island, at 3,069 m, which is the highest point of the island and the Indian Ocean.

Pitons, cirques and remparts of Reunion Island

Pitons, cirques and remparts of Reunion Island (Pitons, cirques et remparts de l'île de La Réunion) is a French UNESCO World Heritage natural site, inscribed 2010 under criteria (vii) and (x), covering 105,838 ha or 40% of Réunion around Piton des Neiges and Piton de la Fournaise.

Pitot tube

A Pitot tube, also called a Pitot probe, is a slender pressure-sensing probe that measures fluid flow velocity from the difference between total and static pressure, used on aircraft and in pipes.

Pitrags

Pitrags (Pitrõg) is a Livonian Coast fishing village in Kurzeme, Latvia, within Slītere National Park. First recorded in 1582; 190 residents in 1826; Baptist prayer house built 1902; home of storyteller Marija Šaltjāre.

Pitru Paksha (पितृ पक्ष)

Pitru Paksha, also known as Pitri Paksha, is a sixteen-day Hindu lunar observance around September–October for honoring ancestors through Shraddha, Tarpan, and Pind Daan rites.

Pitseolak Ashoona

Pitseolak Ashoona (ᐱᓯᐅᓚ ᐊᓱᓇ) was an Inuit artist in Kinngait, Nunavut, who made over 8,000 drawings and had prints in every Cape Dorset annual collection from 1960.

Pitso Mosimane

Pitso Mosimane, South African football manager born 1964, three-time CAF Champions League winner with Mamelodi Sundowns and Al Ahly, five-time SA Premiership champion, and Bafana Bafana coach reappointed in 2026.

Pitt County

Pitt County, North Carolina: eastern NC county founded 1760, named for William Pitt; seat Greenville, home of East Carolina University and ECU Health; population 170,243 (2020).

Pitt Islands

Pitt Islands (Islas Avellaneda) are a small island group at the north end of the Biscoe Islands, Antarctic Peninsula, at 65°26′S 65°30′W. Named by John Biscoe in 1832 for William Pitt; charted by Rymill's BGLE in 1935-36; home to the Jinks Island Complex and Gentoo penguins.

Pitt Rivers Museum

Pitt Rivers Museum, University of Oxford's anthropology and world archaeology museum, founded 1884 from Augustus Pitt-Rivers' gift of about 22,830 objects; over 500,000 items today, displayed by type in dense Victorian galleries, now engaging with its colonial legacy.

Pitt Stadium

Pitt Stadium was the on-campus football stadium of the University of Pittsburgh, home to the Pitt Panthers from 1925 until its demolition after the 1999 season.

Pitt Water-Orielton Lagoon

Pitt Water-Orielton Lagoon is a 3,334-hectare Ramsar-listed wetland on Tasmania's south-east coast, designated in 1982 and home to migratory shorebirds and the live-bearing sea star.

Pitt-Hopkins syndrome

Pitt-Hopkins syndrome (PTHS, PHS) is a rare autosomal dominant neurodevelopmental disorder caused by TCF4 haploinsufficiency at 18q21.2, with severe intellectual disability, absent speech, hyperventilation-apnea episodes, epilepsy, and distinctive facial features.

Pitt's India Act

Pitt's India Act (East India Company Act 1784), passed under William Pitt the Younger, created the Board of Control for political affairs, established dual control with the Court of Directors, subordinated the presidencies, and lasted until 1858.

Pitta

Pitta (Vieillot, 1816) is a genus of colorful, shy, terrestrial suboscine birds in the family Pittidae, 15–29 cm long, with contested species limits, notable vocal differentiation, and many species of conservation concern.

Pitta Kathalu (పిట్ట కథలు)

Pitta Kathalu (పిట్ట కథలు), Telugu for "short stories," is Netflix's first Telugu original, a 2021 four-part anthology by Tharun Bhascker, Nandini Reddy, Nag Ashwin, and Sankalp Reddy about women, love, and betrayal.

Pitted keratolysis

Pitted keratolysis (keratolysis plantare sulcatum), a superficial bacterial infection of the soles causing 1–3 mm pits and foul odor, caused by Corynebacteria and related Gram-positive bacteria, treated with topical antibiotics.

Pittidae

Pittidae, the pittas, is a family of colorful Old World ground birds in Passeriformes, from Africa to Australia, with genera Erythropitta, Hydrornis, and Pitta; leaf-litter foragers, many threatened by forest loss.

Pitting (contact fatigue)

Pitting, a surface-damage process in contact fatigue, occurs when repeated rolling or rolling-sliding contact removes small pieces of material from bearings, gear teeth, cams, and rails.

Pitting corrosion

Pitting corrosion is a localized form of corrosion in which small cavities form in a metal's surface when its protective passive film breaks down, often from chlorides.

Pitting oedema

Pitting oedema (pitting edema), ICD-11 MG29.3, is swelling that leaves a persistent indentation after pressure, graded 1-4 by pit depth and rebound time; caused by heart failure, venous insufficiency, kidney disease, and drugs, unlike non-pitting lymphoedema.

Pittler

Pittler is a German machine tool name founded as Maschinenfabrik Wilhelm von Pittler in Leipzig in 1889, known for the 1910 gear skiving patent and Pittler T&S turning machines.

Pittodrie Stadium

Pittodrie Stadium, Aberdeen: home of Aberdeen F.C. since 1903, opened 1899 as Pittodrie Park, capacity 20,866, record crowd 45,061 (1954), pioneer of the dugout and all-seating, with a proposed beachfront replacement stadium under discussion.

Pittosporum

Pittosporum (Banks ex Gaertn.) is the largest genus of Pittosporaceae (Apiales), about 150-200 species of trees and shrubs with sticky-resin-coated seeds, native from Africa and Asia to Australia and the Pacific, absent from the Americas; includes ornamentals and the invasive P. undulatum.