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Artificial synovial fluid
Artificial synovial fluid is an engineered liquid reproducing the lubricating function of natural synovial fluid, spanning lab test fluids, bioengineered fluids, and injectable arthritis lubricants.
Artificial turf
Artificial turf, also called synthetic grass or AstroTurf, is a man-made grass surface first installed in 1964 and used in over 10,000 US sports fields; known for low maintenance, heat buildup, and debated injury risk.
Artificial upwelling
Artificial upwelling is a proposed marine geoengineering technique that pumps nutrient-rich deep water to the sunlit surface to boost phytoplankton growth and, in principle, sequester CO2.
Artificial Urinary Sphincter
Artificial urinary sphincter (AUS), AMS 800, implantable hydraulic prosthesis treating sphincter-deficiency urinary incontinence; first implanted 1973 (AS721, Scott), gold standard for male stress urinary incontinence.
Artificial urinary sphincter implantation
Artificial urinary sphincter implantation is a surgical procedure placing an inflatable cuff, pump, and pressure-regulating balloon around the urethra to restore continence in men with severe stress incontinence.
Artificial vagina
Artificial vagina (AV), semen collection device for animal breeding; a warm-water-filled cylinder with liner and collection cone. First built in 1914 (Amantea, dogs; also bulls), refined for temperature and pressure, superior to electroejaculation in semen quality.
Artificial ventilation
Artificial ventilation is a medical intervention that mechanically moves gas into and out of the lungs, delivered invasively through a tube or non-invasively through a mask.
Artificial-noise-aided beamforming
Artificial-noise-aided beamforming is a wireless physical layer security technique in which a transmitter beams artificial noise into an eavesdropper's channel while canceling it at the legitimate receiver.
Artillery
Artillery is a class of crew-served military weapons, including cannon, howitzers, mortars, and rocket launchers, that launch projectiles by propellant; the word also names the army branch operating them.
Artillery (band)
Artillery is a Danish thrash metal band formed in 1982 in Taastrup, Copenhagen, around the Stützer brothers. Known for By Inheritance (1990), clean melodic vocals, and albums on Neat, Roadrunner, and Metal Blade including X (2021).
Artillery battery
An artillery battery is a tactical grouping of usually four to eight artillery pieces, including guns, howitzers, mortars, or rocket launchers, plus the staff needed to run them.
Artimus Pyle
Artimus Pyle (born 1948, Thomas Delmer Pyle) is an American drummer, Lynyrd Skynyrd's drummer 1974-1977, a 2006 Rock and Roll Hall of Fame inductee, last surviving classic-lineup member, and leader of the Artimus Pyle Band.
Artin group
An Artin group is a group given by generators and braid relations from a Coxeter matrix; adding relations a_i^2 = 1 yields its Coxeter group.
Artin reciprocity law
The Artin reciprocity law, Emil Artin's 1927 theorem, is the central result of class field theory, identifying Galois groups of abelian extensions with class groups.
Artin–Hasse exponential
The Artin–Hasse exponential is a formal power series associated to a prime p whose coefficients are all p-adic integers, unlike the ordinary exponential, and is a tool in p-adic analysis.
Artinian ring
An Artinian ring is a ring satisfying the descending chain condition on ideals, named after Emil Artin, who studied such rings around 1928. Examples include every finite ring.
Artio Chasma
Artio Chasma is a 450-km IAU-approved chasma on Venus at 35.5 S, 39 E, a shallow ridge-trough-ridge structure about 1,000 km long tied to ribbon-tessera terrain, named for a Celtic bear-goddess.
Artiodactyl
Artiodactyla (artiodactyls, even-toed ungulates, Cetartiodactyla) is the mammal order of pigs, hippos, camels, deer, and cattle, plus nested whales; paraxonic feet, double-pulley astragalus, 10 families, 248 species.
Artis Gilmore
Artis Gilmore (born 1949, Chipley, FL), "the A-Train," 7'2" Hall of Fame center of the ABA Kentucky Colonels (1975 champion, 1972 MVP) and the NBA Bulls, Spurs, and Celtics; career .599 FG% and NCAA-record 22.7 rpg.
Artis Techbio
Artis TechBio is the TechBio fund family of Artis Ventures, a San Francisco venture capital firm investing in AI and synthetic biology applied to medicine.
Artis Ventures
Artis Ventures is a San Francisco venture capital firm founded in 2001 by Stuart Peterson, investing early-stage in biotech, healthcare, and technology companies across the United States.
Artis zeego
The Artis zeego is a floor-mounted, multi-axis robotic C-arm angiography system made by Siemens Healthineers, introduced in 2007, that combines 2D fluoroscopy with 3D cone-beam CT reconstruction.
Artisan
Artisan, also called craftsperson or craftsman, a skilled craft worker making objects partly or entirely by hand; classified in NOC 5244 and ILO ISCO 7331; central to UNESCO intangible heritage safeguarding, historic guild systems, and craft economies such as India's 64.66 lakh artisans.
Artisan Entertainment
Artisan Entertainment Inc. (formerly Family Home Video, IVE, LIVE Entertainment) was a Santa Monica independent film studio, best known for The Blair Witch Project, acquired by Lions Gate on December 15, 2003 for $168.9 million.
Artisans of Peace
Artisans of Peace (Artisans de la Paix, Artesanos de la Paz) was the Basque civil society collective that organized ETA's 2017 disarmament, handing eight weapons caches to French authorities; distinct from a 2026 Sacred Heart peace-education initiative of the same name.
Artist
Artist: a creator in visual art, music, literature, or performance; also "indie artist" in music, meaning self-releasing without a major label. Covers definitions, masters ownership, precarity, and platforms.
Artist collective
Artist collective: a durable group of artists with shared authorship and shared decision-making, also called art collectives or artist cooperatives. Roots in Futurism, Dada, Situationists; 2021 Turner Prize shortlist was all collectives; ruangrupa curated documenta 15.
Artist Company
Artist Company (아티스트컴퍼니) is a Seoul talent agency founded in 2016 by actors Lee Jung-jae and Jung Woo-sung, representing stars like Park So-dam and producing content with affiliate Artist Studio.
Artist's Shit
Artist's Shit (Merda d'artista), Piero Manzoni's 1961 edition of 90 tins, 30 grams each, priced by weight at the gold price; held by MoMA, Pompidou, and DIA.
Artistic director
Artistic director: the leader who sets the artistic program, season repertoire, and creative identity of a theater, dance company, opera house, or festival, paired with an executive or managing director who handles finances and administration.