All articles starting with P
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Prime Video
Prime Video is Amazon's subscription video-on-demand streaming service, included with Amazon Prime or available standalone. It began as Prime Instant Video in 2011 and took its current name in 2018.
Prime-counting function
The prime-counting function π(x) is a number theory function counting the primes less than or equal to x, so π(100) = 25 since exactly 25 primes lie below 100.
Prime95
Prime95 is a free program written by George Woltman for the Great Internet Mersenne Prime Search, a distributed project founded in 1996, and doubles as a standard CPU stress-testing tool.
Primearth EV Energy
Primearth EV Energy (PEVE) was a Japanese automotive battery maker founded in 1996 as a Toyota–Panasonic joint venture; it was renamed TOYOTA BATTERY in 2024.
Primed In Situ Labeling
Primed in situ labeling (PRINS), also called oligonucleotide-primed in situ DNA synthesis, is a cytogenetic labeling method developed by Koch et al. in 1988-1989 as a fast alternative to FISH, using unlabeled primers under 50 nucleotides extended in situ by DNA polymerase with labeled nucleotides.
Primeira Liga
Primeira Liga (Liga Portugal Betclic), Portugal's top men's football division, 18 teams over 34 matchdays, organized by Liga Portugal since 1995; first played experimentally in 1934/35 with 8 clubs.
Primeiras Estórias
Primeiras Estórias is a 1962 collection of 21 short stories by the Brazilian writer João Guimarães Rosa, containing his most anthologized story, "A terceira margem do rio".
Primeiro Comando da Capital
Primeiro Comando da Capital (PCC, First Command of the Capital), Brazilian criminal organization founded in 1993 in Taubaté prison, São Paulo; 20,000–30,000 members, horizontal factional command, cocaine trafficking via Santos, South American expansion, US terrorist designation.
Primeiros Cantos
Primeiros Cantos is the debut poetry book of Brazilian Romantic poet Antônio Gonçalves Dias, published in Rio de Janeiro in 1846 and containing "Canção do exílio".
Primene-type branched fatty amines
Primene-type branched fatty amines are long-chain primary amines whose nitrogen sits on a tertiary carbon of a branched chain, marketed by Dow as Primene 81-R and JM-T for fuel and lubricant uses.
Primer (film)
Primer (2004) is Shane Carruth's ~$7,000 indie time-travel film about two engineers whose box-like machine lets them revisit hours of their own past, winning Sundance's Grand Jury Prize and becoming famous for its deliberately impenetrable plot.
Primer (molecular biology)
A primer is a short nucleic acid strand that gives DNA polymerase a starting point to synthesize a new strand, used in PCR and DNA sequencing.
Primer (paint)
Primer (paint) is the first coating in a paint system, applied to bond topcoat to substrate, seal porous surfaces, and block stains. Main types: latex, oil-based, and shellac-based primers, differing in adhesion, drying speed, and VOC content.
Primer (Primer API Limited)
Primer is a London-based fintech company selling payments-orchestration infrastructure, founded in 2020 by former Braintree and PayPal employees; it has raised $170 million, including a $100 million Series C in 2026.
Primer annealing
Primer annealing is the PCR step, between denaturation and extension, in which primers bind complementary template DNA at around 50 °C, largely determining amplification specificity.
Primer design
Primer design, also known as PCR primer design, is the process of selecting oligonucleotide primers for PCR, described as the most critical parameter for successful amplification.
Primer exchange reaction
The primer exchange reaction (PER) is an isothermal DNA reaction in which a catalytic hairpin template repeatedly copies sequences onto a primer, growing concatemers used in SABER FISH and biosensing.
Primer extension
Primer extension is a molecular biology assay in which a labeled DNA primer is extended on an RNA template to map a transcript's 5′ start site or genotype a variant.
Primera Divisió
Primera Divisió is Andorra's top men's football league, run by the FAF since 1995-96; FC Santa Coloma holds 13 titles, champions enter Champions League qualifying since 2007/08.
Primera Federación
Primera Federación (Primera División RFEF, sponsored as Versus e-Learning) is Spain's third-tier men's football league, run by the RFEF since 2021/22: 40 clubs in two groups of 20, group winners promoted to Segunda División.
Primera Junta
The Primera Junta (Primera Junta de Gobierno de Buenos Aires) was the provisional governing council formed in Buenos Aires on 25 May 1810, deposing Viceroy Cisneros.
Primera Plana
Primera Plana was an Argentine weekly news magazine founded in Buenos Aires in 1962 by Jacobo Timerman, which introduced interpretive journalism and shaped 1960s culture and politics until 1973.
Primera Premier
Primera Premier: top branch of Mexico's Liga Premier (Segunda División), created August 2026 with 18 founding clubs for the 2026-27 season, distinct from the English Premier League and from Liga Premier Serie A.
PRIMERA study
PRIMERA (NCT04188275) is a prospective observational trial from Azienda Ospedaliero-Universitaria Careggi, Florence, studying circulating miRNA and AR-V7/ARFL/PSMA on circulating tumor cells in metastatic castration-resistant prostate cancer patients starting abiraterone or enzalutamide plus LHRH agonist therapy; interim analyses linked CTC and ARFL detection to shorter time to castration resistance.
Primerica
Primerica, also known as Primerica Financial Services, is a financial services company selling term life insurance and investment products to middle-income households through independent contractor representatives.
Primero de Mayo Bay
Primero de Mayo Bay (bahía Primero de Mayo; Fumarole Bay, Bahía Septiembre) is a bay on the SW side of Port Foster, Deception Island, South Shetland Islands, named by Argentina's 1942-43 expedition after the ship 1 de Mayo, with active beach fumaroles.
PrimeSense
PrimeSense was an Israeli 3D-sensing company founded in Tel Aviv in 2005 whose structured-light depth-sensing chip powered Microsoft's Kinect; Apple acquired it in 2013, reportedly for about $350 million.
Primetals Technologies
Primetals Technologies is a full-line supplier of metallurgical plant equipment and lifecycle services, formed in 2015 from the merger of Mitsubishi Hitachi Metals Machinery and Siemens VAI Metals Technologies.
Primetime (film)
Primetime is a 2026 A24 crime drama thriller directed by Lance Oppenheim, written by Ajon Singh, starring Robert Pattinson as To Catch a Predator host Chris Hansen; premiered at Venice, released September 25, 2026.
Primetime Emmy Award for Outstanding Comedy Series
Primetime Emmy Award for Outstanding Comedy Series: top Television Academy series award, given since 1952. Frasier and Modern Family lead with 5 wins; current winner is Apple TV+'s Widow's Bay (2026), which set a single-season comedy record of 14 Emmys.