All articles starting with P
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Powhatan
Powhatan (Wahunsenacawh, d. 1618) was the mamanatowick, or paramount chief, of Tsenacomoco, an alliance of 28 to 32 Virginia Algonquian tribes, and the central Native counterpart to the Jamestown colonists from 1607 until his death.
Powhatan (Native American leader)
Powhatan (Wahunsenacawh, c. 1550–1618) was the mamanatowick, paramount chief of Tsenacomoco, who united 28–32 Virginia tribes before Jamestown's 1607 founding; father of Pocahontas, not the Virginia county named for him.
Powiat kielecki
Powiat kielecki (Kielce County), a powiat in Poland's Świętokrzyskie Voivodeship created in 1999, surrounding the city of Kielce; 19 gminas, about 211,000 residents; also the name of a Russian-era district administered 1866–1915.
Powiat krakowski
Powiat krakowski (Kraków County, TERYT 1206) is a rural powiat in Małopolskie Voivodeship, Poland, seat in Kraków; 304,885 residents (2025), 123,325 ha, 17 rural gminas, 2025 budget 512.46 mln zł income.
Powiat nowosądecki
Powiat nowosądecki (Nowy Sącz County) is a powiat in Lesser Poland Voivodeship, seat Nowy Sącz (a separate city with powiat rights); restored 1999 after the 1975–1998 Nowy Sącz voivodeship.
Powiat poznański
Powiat poznański (Poznań County) is a land county in Wielkopolskie Voivodeship, Poland, of 17 gminas ringing Poznań, seat in Poznań; 1,900 km², 454,283 people (2024), Poland's most populous powiat, unemployment 1.0%.
Powiat wejherowski
Powiat wejherowski (Wejrowsczi kréz) is a land county in Poland's Pomeranian Voivodeship, seat Wejherowo; 1,285.25 km², over 210,000 people, 10 gminas, created 1818, recreated 1999, TERYT 2215.
Powiat wołomiński
Powiat wołomiński (Wołomin County) is a land powiat in Masovian Voivodeship, Poland, seat Wołomin, northeast of Warsaw. 12 gminas, 955.4 km², about 280,000 residents, created 1 January 1999 after a 1952–1975 predecessor.
Powin Energy
Powin Energy, later Powin, LLC, was an Oregon-based maker of utility-scale battery energy storage systems founded in 1989, which entered Chapter 11 bankruptcy with liquidation confirmed in December 2025.
Powis Castle
Powis Castle is a medieval fortress at Welshpool in Powys, Wales, transformed by the Herbert family into a grand country house now cared for by the National Trust.
Powwow music
Powwow music is the intertribal song and drum tradition performed at powwows of Native American and First Nations communities, with singer groups called drums performing mostly in vocables.
Powys
Powys, a principal area and preserved county in Mid Wales created in 1974 from Montgomery, Radnor and Brecknock, is Wales's largest county by area, covering about a quarter of Wales with its lowest population density.
Powys Regio
Powys Regio is a 2,000-km-wide mottled chaos region on Jupiter's moon Europa, in the leading anti-Jovian quadrant, named for the Celtic kingdom of mid-Wales and adopted by the IAU in 2007.
Poxviridae
Poxviridae (poxviruses) is a family of large brick-shaped enveloped dsDNA viruses replicating in the cytoplasm; two subfamilies, Chordopoxvirinae and Entomopoxvirinae, include variola (smallpox), vaccinia, and mpox viruses.
Poyang
Poyang, also called Pengli Lake (鄱阳湖), is China's largest freshwater lake, in Jiangxi Province about 50 km north of Nanchang, draining into the Yangtze River.
Poynter Institute
The Poynter Institute (Poynter Institute for Media Studies, formerly Modern Media Institute) is a St. Petersburg, Florida 501(c)(3) journalism school founded by Nelson Poynter in 1975, owner of the Tampa Bay Times, operator of Poynter.org, PolitiFact, and the IFCN.
Poynting (lunar crater)
Poynting is a 127.55-km-diameter impact crater on the Moon at 17.50°S, 133.38°W, adopted by the IAU in 1970 and named for British physicist John Henry Poynting (1852–1914).
Poynting vector
The Poynting vector, or Poynting flux, is the vector describing the directional energy flux of an electromagnetic field, the rate of energy transfer per unit area, in watts per square meter.
Poynting–Robertson effect
The Poynting–Robertson effect, proposed by John Henry Poynting in 1903 and treated relativistically by Howard P. Robertson in 1937, is radiation drag that makes small orbiting dust particles lose momentum and spiral inward toward the Sun.
Poyo Surf Club
Poyo Surf Club is a Guadeloupe surf school and loi 1901 association founded by Cyrill Villoing in July 2003, SIREN 488 080 284, with bases at Le Moule, Plage de Bananier (Capesterre-Belle-Eau), and Le Helleux, teaching surf, SUP, and bodyboard.
Poyser Street drill hall, Wrexham
Poyser Street drill hall, Wrexham: 1902 red brick castle-style drill hall for the Royal Welch Fusiliers' volunteer battalion, architect M J Gummow, opened by Lord Roberts 1903, TA use until 1988, now at risk.
Poza Rica de Hidalgo
Poza Rica de Hidalgo, a city and municipality in northern Veracruz, Mexico; former "Oil Capital of Mexico" (70% of national crude, 1946–1956); municipality created 1951; refinery closed 1991; hit by the 2025 Cazones River flood.
Poza Rica Oil and Gas Field
The Poza Rica oil and gas field is a giant petroleum field in Veracruz, Mexico, discovered by Shell in 1930 and Mexico's main oil source for three decades.
Pozelimab
Pozelimab (Veopoz, pozelimab-bbfg, REGN3918) is Regeneron's fully human anti-C5 IgG4P monoclonal antibody, FDA-approved August 18, 2023 as the first treatment for CHAPLE disease (CD55-deficient protein-losing enteropathy), and in phase 3 trials with cemdisiran for PNH and myasthenia gravis.
Pozhenzi: A Strong Ci for Chen Tongfu
"Pozhenzi: A Strong Ci for Chen Tongfu" (破阵子·为陈同甫赋壮词以寄之) is a ci poem by the Southern Song poet Xin Qiji, written for his friend, the war advocate and thinker Chen Liang.
Poziotinib
Poziotinib (HM781-36B, NOV-120101) is an oral irreversible pan-HER tyrosine kinase inhibitor developed for EGFR and HER2 exon 20 insertion-mutant cancers; ZENITH20 showed modest efficacy and marked toxicity, and it was never FDA approved.
Poznań
Poznań, a major city in western Poland and historical capital of Wielkopolska, founded 1253 under Magdeburg Law; about 534,000 registered residents, fifth largest Polish city, home of Adam Mickiewicz University and the Poznań Fast Tram.
Poznań Palm House
Poznań Palm House (Palmiarnia Poznańska), in Wilson Park, Poznań, Poland: opened 1911, largest palm house in Poland at 4,600 m², about 1,100 plant species and 170 fish species; closed 2026 for a rebuild due in 2030.
Poznań protests of 1956
Poznań June 1956 (Poznański Czerwiec), first mass workers' protest against Poland's communist government: 28–29 June 1956 strike at ZISPO, ~100,000 demonstrators, suppressed by tanks, 57 dead.
Poznań Supercomputing and Networking Center
The Poznań Supercomputing and Networking Center (Polish: Poznańskie Centrum Superkomputerowo-Sieciowe, PCSS) is a Polish research institute in Poznań that operates the PIONIER national research network and supercomputers.