All articles starting with P
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Pigafetta Montes
Pigafetta Montes is a mountain range on Pluto, imaged by New Horizons in 2015 and named in 2019 for Antonio Pigafetta, with methane-frosted peaks resembling snow-capped mountains.
Pigeon Forge, Tennessee
Pigeon Forge, Tennessee: city in Sevier County near Great Smoky Mountains National Park, named for Isaac Love's 1820 iron forge and extinct passenger pigeons; home to Dollywood, with $2 billion-plus annual tourism gross receipts.
Pigeon pea
Pigeon pea (Cajanus cajan), also red gram or gungo pea, is a drought-resistant tropical legume shrub domesticated in India from C. cajanifolius, grown on about 6 million ha for protein-rich seeds, fodder, and soil-improving nitrogen fixation.
Pigeon post
Pigeon post, also called pigeon mail, is the sending of messages by homing pigeons, used for roughly 3,000 years and most famously to carry mail into besieged Paris in 1870–71.
Pigeon racing
Pigeon racing, also known as colombophilia, is a sport in which specially bred homing pigeons are released far from their loft and timed on their return flight.
Pigeon toe
Pigeon toe (intoeing) is a common childhood gait pattern with feet turned inward, caused by metatarsus adductus, internal tibial torsion, or femoral anteversion; it usually self-corrects by age 8 without treatment.
Pigeonhole principle
The pigeonhole principle, also called the Dirichlet box principle, states that more than n objects placed in n boxes force one box to hold two or more.
Pigeonite
Pigeonite is a calcium-poor clinopyroxene mineral of magnesium, iron, and calcium, named in 1900 for Pigeon Point, Minnesota, and typical of rapidly cooled basaltic lavas.
Pigface
Pigface is an American industrial rock collective formed in Chicago in 1990 by drummer Martin Atkins and Bill Rieflin during a Ministry tour. Known as a revolving supergroup with roughly 600 to 800 collaborators, its albums include Gub, Fook, and Easy Listening.
Piggate
Piggate, also called Porkergate, is the uncorroborated 2015 allegation that David Cameron, then UK Prime Minister, placed a private body part in a dead pig's mouth at Oxford.
Piggery
Piggery (porciculture): the farming of Sus scrofa for pork, spanning indoor, outdoor, and combination systems. Covers housing, ventilation, ammonia limits, manure management, biosecurity, and welfare regulation.
Pigging
Pigging, or pipeline pigging, is the practice of cleaning and inspecting oil and natural gas pipelines by pushing a device called a pig through with line pressure.
Piggly Wiggly
Piggly Wiggly is an American franchised grocery brand founded in Memphis, Tennessee, in 1916 by Clarence Saunders, whose first store introduced self-service shopping to a mass market.
Piggy bank
A piggy bank, also called a money box, is a coin container traditionally shaped like a pig, with a slot for coins and no easy way to remove them.
Piggy Tales
Piggy Tales is Rovio's Finnish CGI animated series (2014; four seasons; 2014–2017 on Disney+, to 2019 on the Angry Birds Wiki) about the Angry Birds' Bad Piggies, in non-dialogue, minute-long episodes across Pigs at Work, Third Act, and 4th Street.
Piglet (Winnie-the-Pooh)
Piglet is the timid "Very Small Animal" and best friend of Winnie-the-Pooh in A. A. Milne's 1926 and 1928 books, living under a "Trespassers W" sign, growing brave by The House at Pooh Corner, and later a Disney character voiced by John Fiedler.
Piglet's Big Movie
Piglet's Big Movie is a 2003 American animated musical comedy from DisneyToon Studios in which Piglet runs away and Pooh and friends find him with his scrapbook of memories.
Piglets (TV series)
Piglets is a British ITV sitcom (2024-2026) about six recruits at the fictional Norbourne police training college, created by Victoria Pile's Green Wing team, starring Sarah Parish and Mark Heap, cancelled after two series.
Pigment
A pigment is a finely divided insoluble solid that colors a material by absorbing and scattering light, used mainly in paints, printing inks, and plastics and distinct from soluble dyes.
Pigment-dispersing hormone
Pigment-dispersing hormone (PDH), also called pigment-dispersing factor (PDF) in insects and nematodes, is an 18-residue arthropod neuropeptide controlling pigment dispersion and circadian rhythms, first isolated from shrimp eyestalks.
Pigmentary open-angle glaucoma
Pigmentary open-angle glaucoma (pigmentary glaucoma, PG): secondary open-angle glaucoma from pigment dispersion syndrome, affecting young myopic men, with higher surgery rates and LTP/MIGS failure than POAG.
Pigmentation
Pigmentation: coloration or discoloration of tissue by a pigment, chiefly melanin in human skin, hair, and eyes. Covers melanin biology, hyper- and hypopigmentation disorders, measurement scales, and device accuracy effects.
Pigmented villonodular synovitis
Pigmented villonodular synovitis (PVNS), now called tenosynovial giant cell tumor, is a rare benign but locally aggressive proliferation of the joint lining, most often affecting the knee.
Pigments
Pigments is a 1937 poetry collection by the French Guianese writer Léon-Gontran Damas, the first published volume associated with the Négritude movement and a blunt attack on colonialism and racism.
Pigouvian tax
A Pigouvian tax is a per-unit tax on activities that harm others, set so the payer faces the full social cost, as with a carbon tax.
Pigpen cipher
The pigpen cipher, also called the masonic cipher, is a geometric substitution cipher that replaces letters with grid symbols, used by Freemasons since the 18th century.
Pigs and Battleships (豚と軍艦)
Pigs and Battleships (豚と軍艦, Buta to gunkan; Hogs and Warships) is Shohei Imamura's 1961 Nikkatsu black-and-white drama, set around the U.S. naval base in Yokosuka, about a yakuza gang's pig-farming scheme and a young hustler's downfall.
Pigs in a blanket
Pigs in a blanket: in the US, sausages or hot dogs baked in dough; in the UK, bacon-wrapped sausages served at Christmas. Also called pigs in blankets; earliest cited print use is Betty Crocker's 1957 Cooking for Kids.
Pigtail
Pigtail: a lock of hair tied or braided at the back or sides of the head, plural for two side bunches; also twisted tobacco and an electrical wire. First recorded 1680–90; hair sense from 1753.
Piha-walwi
Piha-walwi was a Hittite scribe on wood of the 13th century BC, attested at the capital Hattuša and known for seals combining the title SCRIBA with number signs.