All articles starting with P
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Polladhavan (பொல்லாதவன்) (2007 film)
Polladhavan (பொல்லாதவன்), 2007 Tamil action drama, Vetrimaaran's directorial debut starring Dhanush and Divya Spandana; a stolen Bajaj Pulsar drags Prabhu into Chennai's underworld, sharing its title with Rajinikanth's 1980 film.
Pollakiuria
Pollakiuria (pollakisuria), from Greek pollakis "often," is abnormally frequent urination with small voided volumes and normal daily output; distinguished from polyuria (>3 L/day), common in children as benign daytime frequency syndrome.
Pollard's rho algorithm for logarithms
Pollard's rho algorithm for logarithms is a probabilistic method for solving the discrete logarithm problem, found by John Pollard in 1974 and published in 1978, running in expected O(√n) operations.
Pollarding
Pollarding is a tree-management practice in which upper branches are repeatedly cut back above the reach of browsing animals, producing regrown shoots for fodder and firewood.
Pollardstown Fen
Pollardstown Fen is a spring-fed calcareous fen near Newbridge in County Kildare, Ireland, the largest in the country and a National Nature Reserve, Ramsar site, and Special Area of Conservation.
Pollaxe
The pollaxe, also spelled poleaxe, was a two-handed European staff weapon of the late 14th to 16th centuries with an axe blade, hammer, and top spike for defeating armor.
Pollen
Pollen is the powdery reproductive material of seed plants, microscopic grains produced in flower anthers or gymnosperm microsporangia that carry sperm to fertilize the oosphere and form seeds.
Pollen Robotics
Pollen Robotics is a French open-source robotics company based in Bordeaux, founded in 2016 by former Inria researchers and acquired by Hugging Face in 2025.
Pollen tube
Pollen tube: tubular outgrowth of a pollen grain that grows through the stigma and style to deliver two sperm cells for double fertilization; growth is tip-focused, calcium-gradient driven, and regulated by self-incompatibility systems.
Pollenzo Roman amphitheater
Pollenzo Roman amphitheater, at ancient Pollentia (Pollenzo, Bra, Cuneo, Italy), a full-structure imperial amphitheater of about 132 x 98 m with an 82 x 48 m arena, built after the mid-1st century AD, abandoned by the early 5th, and preserved in the elliptical village built on its radial walls.
Pollepel Island
Pollepel Island (Bannerman Island) is a 6.5-acre Hudson River island in Fishkill, NY, holding the ruins of Bannerman Castle, an arsenal warehouse built 1901–1918 by Francis Bannerman VI, damaged by a 1920 explosion and 1969 fire, now toured via the Bannerman Castle Trust.
Pollera
Pollera: Spanish American woman's skirt and traditional costume; Panama's embroidered national two-piece dress, Bolivia and Peru's layered cholita skirt, Ecuador's chola cuencana pleated skirt; Spanish colonial origin, 16th century onward.
Pollera women
Pollera women are Panamanian wearers and makers of the pollera, the national female dress whose name comes from 17th-century Spanish dress, with variants like the gala santeña; distinct from Bolivia's cholita pollera skirt.
Pollia
Pollia Thunb. (1781) is a genus of about 19-26 perennial herbs in Commelinaceae, pantropical mainly in Asia; known for the structurally colored metallic-blue marble berry Pollia condensata and distinct from the gastropod genus Pollia Gray, 1834.
Pollination
Pollination: transfer of pollen from anthers to stigmas by insects, other animals, wind, or water. Angiosperms are ancestrally insect pollinated; 87.5% of wild flowering plants and 35% of crop production depend on it.
Pollination by bees
Pollination by bees is the transfer of pollen from anthers to stigmas by foraging bees, a mutualism that supports about 90% of flowering plant species and one-third of global food production.
Pollinator
Pollinator: an animal or abiotic agent (bees, flies, birds, bats, wind, water) that transfers pollen between flowers for plant reproduction. Over 80% of flowering plants and 35% of crop production depend on animal pollination; some pollinators are declining.
Pollinator decline
Pollinator decline: falling abundance and diversity of wild bees, hoverflies, butterflies, and other pollen-transferring animals, driven by habitat loss, pesticides, climate change, and disease, threatening crop pollination and wild plant reproduction.
Pollinator Partnership
Pollinator Partnership (P2), founded 1997 in San Francisco, is a 501(c)(3) nonprofit dedicated exclusively to pollinator conservation; it leads NAPPC, National Pollinator Week, Bee Friendly Farming, and the Ecoregional Planting Guides.
Polling (computer science)
Polling in computer science is a technique where software repeatedly reads a device's status register to determine when it is ready, trading CPU time for simplicity and low latency.
Polling station
A polling station is a designated place where registered voters cast ballots in person before election officials. Covers staffing, opening hours, accessibility law, vote centers, and evidence that congestion lowers turnout.
Pollo (gamer)
Pollo (gamer) covers several esports players using the ID, chiefly Miguel "Pollo" Moreno (born 2008), Mexican/American Fortnite pro on Team Falcons, FNCS 2024 Global Champion with Peterbot, $701,525 earned; also LoL, CS, RL, VALORANT players.
Pollo Campero
Pollo Campero is a Guatemalan fast-casual fried and roasted chicken chain founded in Guatemala City in 1971, with more than 350 restaurants and 2022 sales of $684 million.
Pollock
Pollock: Alaska pollock (Gadus chalcogrammus, walleye pollock), a North Pacific cod-family fish supporting the world's second-largest fishery, and Atlantic pollock (Pollachius virens); central to fish sticks, surimi, and Alaska bycatch disputes.
Pollock (film)
Pollock (2000) is Ed Harris's directorial debut biographical drama about painter Jackson Pollock and Lee Krasner, based on the Naifeh-Smith Pulitzer biography; Marcia Gay Harden won the 2001 Oscar for Best Supporting Actress.
Pollock v. Farmers' Loan & Trust Co.
Pollock v. Farmers' Loan & Trust Co. (157 U.S. 429; 158 U.S. 601, 1895) was a 5-4 Supreme Court decision striking down the Wilson-Gorman Tariff Act's 2% income tax on income over $4,000 as an unapportioned direct tax on property income; the Sixteenth Amendment (1913) largely overrode it.
Pollok Country Park
Pollok Country Park is Glasgow's largest park and only country park, a 146-hectare former Maxwell estate on the White Cart Water, holding Pollok House (1750-52) and the Burrell Collection museum, gifted to the city in 1966 and designated a country park in 1980-81.
Pollutant
A pollutant is any substance introduced into the environment that may harm human health or ecosystems, typically from human activities; some, like ground-level ozone, form in the air.
Pollution
Pollution is the introduction of contaminants, whether substances or energy, into the environment at rates that harm health, living systems, or air, water, and soil quality.
Pollution flashover
Pollution flashover is an unwanted electrical discharge across the surface of an outdoor insulator coated with conductive pollution, typically sea salt, industrial dust, or desert sand, and then dampened.