All articles starting with P
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Perpetual stew
Perpetual stew, also called forever soup or hunter's pot, is a stew kept continuously simmering while new ingredients replace eaten portions; famous pots include Bangkok's Wattana Panich broth and viral TikTok stews, though medieval origins are disputed by food historians.
Perpetual virginity of Mary
The perpetual virginity of Mary is the Christian doctrine that Mary, mother of Jesus, was a virgin before, during, and after his birth, bearing no other children.
Perpetual war
Perpetual war, also called endless, permanent, or forever war, is warfare that cannot realistically end because a belligerent pursues unachievable objectives without risk of defeat; central to post-9/11 US counterterrorism debates, Kantian perpetual peace theory, and Orwell's 1984.
Perpetuity
A perpetuity is a stream of cash flows that continues forever, unlike an annuity; its present value is finite, equal to the payment divided by the discount rate.
Perpetuous Dreamer
Perpetuous Dreamer is a trance project of Dutch DJ and producer Armin van Buuren, active 1999 to 2002 and best known for "The Sound Of Goodbye" (2001).
Perpetuus
Perpetuus was Bishop of Tours from about 461 until his death in 490 or 491, remembered for rebuilding the basilica of St Martin and instituting the earliest attested Advent fast.
Perphenazine
Perphenazine (Trilafon) is a high-potency first-generation piperazinyl phenothiazine antipsychotic for schizophrenia and severe nausea/vomiting; half-life 9-12 hours, CYP2D6-dependent, performed as well as atypicals in CATIE.
Perpignan
Perpignan (Perpinyà) is a city in southern France, prefecture of Pyrénées-Orientales. Continental capital of the Kingdom of Majorca 1276–1344; 121,616 inhabitants in 2023; poverty rate 36%.
Perplexity
Perplexity (PPL) is the standard evaluation metric for language models, measuring how surprised a model is by unseen text; introduced in 1977, it applies to autoregressive models.
Perplexity (AI product)
Perplexity is an AI answer engine that returns cited, multi-paragraph answers synthesized from real-time web results, the flagship product of Perplexity AI, which also offers the Comet browser and Computer agent.
Perplexity AI
Perplexity AI is a San Francisco company founded in 2022 whose answer engine gives direct answers with inline citations instead of link lists, competing with Google and ChatGPT.
Perplexity AI funding and acquisition offers
Perplexity AI is an AI search company that raised over $1.5 billion. In August 2026, it was reportedly in talks with Nvidia at a valuation exceeding $30 billion.
Perplexity–Cloudflare scraping dispute
The Perplexity–Cloudflare scraping dispute is a 2025 conflict in which Cloudflare accused Perplexity of stealth crawlers disguised as browser traffic to evade robots.txt, which Perplexity denied while Japanese publishers sued.
Perraibia
Perraibia (Perrhaebia, Greek Περραιβία) was a mountainous district of northern Thessaly, home of the Perrhaebians, perioikoi of the Thessalians, with cities Gonnos, Olosson, Phalanna, freed by Rome in 196 BC and annexed to Thessaly in 146 BC.
Perrault syndrome
Perrault syndrome, also called XX gonadal dysgenesis with deafness, is a rare autosomal recessive disorder causing sensorineural hearing loss in both sexes and ovarian dysfunction in 46,XX females, caused by biallelic variants in 12 genes, mostly mitochondrial.
Perreo
Perreo, also known as sandungueo, is an explicit reggaeton partner dance with grinding hip movements, common in Puerto Rico since the early 1990s and added to the Spanish dictionary in 2023.
Perrey Reeves
Perrey Reeves (born 1970, New York City) is an American actress known as Mrs. Ari Gold on HBO's Entourage (2004–2011) and its 2015 film, Marissa in Old School (2003), and Nina Devon in Famous in Love.
Perri Kiely
Perri Luc Kiely (born 1995, Essex) is an English street dancer and presenter, Diversity member who won Britain's Got Talent 2009, won Splash! 2014, Dancing on Ice 2020 runner-up, and KISS Breakfast co-host with Jordan Banjo until 2026.
Perri Lister
Perri Lister (born 1959, England) is an English former dancer, singer, and actress, a Hot Gossip dancer on the Kenny Everett Video Show, a Blitz Kids New Romantic, background vocalist on Billy Idol's Rebel Yell, Idol's 1980s partner, and choreographer for Duran Duran and Def Leppard.
Perrie (album)
Perrie is the 2025 self-titled debut solo album by Perrie Edwards of Little Mix, released 26 September 2025 on Columbia Records; 16 tracks, UK Albums Chart number 3, singles including Forget About Us and If He Wanted To He Would.
Perrie Edwards
Perrie Edwards (born 1993), known solo as Perrie, is a British singer from Little Mix, The X Factor 2011 winners. Solo since 2024 with "Forget About Us" (UK No. 10) and the 2025 debut album Perrie on Columbia.
Perrier
Perrier is a French sparkling natural mineral water brand bottled at the Les Bouillens spring in Vergèze, Gard, since 1903, named after Dr Louis-Eugène Perrier, owned by Nestlé since 1992, and facing a 2024-2025 natural mineral water labeling scandal.
Perrin C. White
Perrin C. White is an American pediatric endocrinologist who has led the pediatric endocrinology division at UT Southwestern in Dallas since 1994, known for research on congenital adrenal hyperplasia.
Perrine (lunar crater)
Perrine is an IAU-recognized lunar impact crater (Feature ID 4661), 87.41 km across, centered at 42.11°N, −127.95°E on the Moon's far-side northern hemisphere, with satellite crater Perrine S.
Perrine Laffont
Perrine Laffont, French freestyle moguls skier; Olympic gold PyeongChang 2018 and bronze Milan-Cortina 2026; six world titles and multiple World Cup globes; French record holder for World Cup wins.
Perrine Regio
Perrine Regio, a 3,800-km-wide dark-terrain region on Jupiter's moon Ganymede at 34°N, 28°W, named for astronomer Charles D. Perrine; crossed by Nineveh Sulcus and remapped by Juno in 2021.
Perris, California
Perris, California: Riverside County city (pop. 83,237 est. 2025) incorporated 1911, named for railroad engineer Fred T. Perris; home of Lake Perris State Recreation Area, the Southern California Railway Museum, and a major Inland Empire warehouse hub.
Perro Aguayo Jr.
Perro Aguayo Jr. (Pedro Aguayo Ramírez, 1979–2015), El Hijo del Perro Aguayo, Mexican second-generation luchador, AAA and CMLL rudo, founder of Los Perros del Mal; died of cervical fracture and cardiac arrest in a 2015 Tijuana match with Rey Mysterio.
Perron method (verification)
The Perron method is an existence proof technique for viscosity solutions of Hamilton–Jacobi PDEs, constructing a value function that encodes the set of states from which a system can be driven to a target.
Perron–Frobenius theorem
The Perron–Frobenius theorem is a linear algebra result stating that a matrix with positive entries, or an irreducible nonnegative one, has a dominant positive eigenvalue with a positive eigenvector.