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Trigger (guitar)
Trigger is Willie Nelson's 1969 Martin N-20 nylon-string acoustic, serial 242830, built by fitting his destroyed Baldwin 800C's Prismatone pickup into a new Martin via Shot Jackson; famous for its worn hole, signatures, and caretaker Mark Erlewine.
Trigger (horse)
Trigger (Golden Cloud, 1934-1965) was Roy Rogers' golden palomino movie horse, billed "The Smartest Horse in the Movies," appearing in 81 Republic films and 100 TV episodes; preserved by taxidermy and later sold for $266,500.
Trigger (Only Fools and Horses)
Trigger (Colin Ball) is the dim-witted Peckham roadsweeper in BBC sitcom Only Fools and Horses, played by Roger Lloyd-Pack 1981-2003; he calls Rodney "Dave" and inspired "Trigger's broom".
Trigger (South Korean TV series)
Trigger (트리거) is a 2025 South Korean Netflix action-thriller limited series, 10 episodes, written and directed by Kwon Oh-seung, starring Kim Nam-gil as detective Lee Do and Kim Young-kwang as Moon Baek amid illegal guns flooding gun-free Korea; premiered July 25, 2025.
Trigger and data acquisition in particle physics
Trigger and data acquisition (TDAQ) is the online system of a particle physics experiment that selects, in real time, which collisions are recorded and collects detector data for analysis.
Trigger factor
Trigger factor is a ribosome-associated bacterial chaperone, best characterized in E. coli, that meets nascent proteins at the ribosome exit tunnel and assists their co-translational folding.
Trigger finger
Trigger finger (stenosing tenosynovitis, doigt à ressort): a finger or thumb that catches or locks from flexor tendon entrapment at the A1 pulley; first described by Notta in 1850, treated with steroid injection or surgical release.
Trigger Happy TV
Trigger Happy TV is a British hidden camera comedy series starring Dom Joly on Channel 4, piloted in 1998 and aired 2000–2003, famous for the giant mobile phone and giant snail sketches, an indie soundtrack, sales to over 80 countries, and a 2016 All 4 revival.
Trigger Point (TV series)
Trigger Point is a British ITV thriller created by Daniel Brierley, produced by Jed Mercurio's HTM Television, starring Vicky McClure as Met Police bomb disposal officer Lana Washington; four six-episode series (2022-2026), ITV's best performing 2022 drama, distributed internationally by All3Media International.
Trigger point injection
Trigger point injection is a pain medicine procedure in which a needle, usually with local anesthetic, is inserted into a muscle trigger point to relieve pain.
Trigger Warning (film)
Trigger Warning is a 2024 Netflix action thriller directed by Mouly Surya, starring Jessica Alba as Special Forces commando Parker investigating her father's death; released June 21, 2024, it topped Netflix's charts despite poor reviews.
Triggerfish
Triggerfish (family Balistidae) are circumtropical reef fishes of the order Tetraodontiformes, named for a locking dorsal-fin spine used for defense. Includes gray triggerfish biology, balistiform locomotion, evolution, fisheries, and conservation.
Trigintaduonion
The trigintaduonion, also called a 32-nion or pathion, is a 32-dimensional noncommutative, nonassociative hypercomplex algebra over the reals, obtained from the sedenions by the Cayley–Dickson construction.
Triglav
Triglav (2,864 m) is Slovenia's highest mountain in the Julian Alps, first climbed in August 1778 by four Bohinj locals. Its glacier vanished in 2026; the mountain anchors Triglav National Park and Slovenian identity.
Triglav (mythology)
Triglav (Trzygłów), the three-headed god of the Pomeranian Slavs, worshipped at Szczecin, Wolin, and Brandenburg; his idol ruled heaven, earth, and the underworld and was destroyed by Otto of Bamberg in 1124–1128.
Triglava Corona
Triglava Corona is a 400-km-wide corona on Venus at 53.5S, 95E in the Fredegonde (V-57) quadrangle of eastern Lada Terra, part of a four-corona chain, named for an ancient Slavic earth goddess (IAU, 1997).
Triglidae
Triglidae (gurnards, sea robins) is a family of demersal scorpaeniform fishes in tropical and temperate seas, with leg-like sensory pectoral fin rays used to walk and probe for buried prey; roughly 100–170 species, mainly crustacean feeders.
Triglochin
Triglochin (arrow grass) is a genus of about 26-30 species of marsh herbs in Juncaginaceae, Alismatales, described by Linnaeus in 1753, cosmopolitan except Antarctica, with Australia as its diversity center.
Triglyceride
Triglyceride (triacylglycerol, TAG): an ester of glycerol and three fatty acids, the body's most common fat, stored in adipocytes and carried in blood by chylomicrons and VLDL; normal level below 150 mg/dL.
Triglyceride biosynthesis
Triglyceride biosynthesis, also called triacylglycerol biosynthesis, is the pathway by which cells assemble triglycerides from glycerol and fatty acids in the cytosol and endoplasmic reticulum.
Triglyceride deposit cardiomyovasculopathy
Triglyceride deposit cardiomyovasculopathy (TGCV, 中性脂肪蓄積心筋血管症) is a rare Japanese-described disorder of impaired triglyceride lipolysis causing heart failure, diffuse coronary narrowing, and arrhythmia; diagnosed by BMIPP washout under 10% and treated investigationally with tricaprin (CNT-01).
Trigon (comics)
Trigon is a DC Comics interdimensional demon lord created by Marv Wolfman and George Pérez, first appearing in New Teen Titans #2 (1980); father of Raven, ruler of hundreds of worlds from Azarath, and archenemy of the Teen Titans.
Trigona (ransomware)
Trigona was a Delphi-based ransomware family active from June 2022 that used double extortion and demanded Monero, until the Ukrainian Cyber Alliance destroyed its infrastructure in October 2023.
Trigona spinipes
Trigona spinipes (irapuá, arapuá) is a stingless Brazilian bee with huge colonies (~92,500 bees), aerial resin-and-fiber nests, roles as both major pollinator and crop pest, and high insecticide sensitivity via trophallaxis.
Trigonal bipyramidal molecular geometry
Trigonal bipyramidal molecular geometry is the arrangement of five atoms or electron regions around a central atom: three equatorial positions and two axial ones, seen in PCl5.
Trigonella
Trigonella L. is a genus of Fabaceae herbs in tribe Trifolieae, including fenugreek (T. foenum-graecum), native to the Old World and Australia; molecular work moved medicagoids to Medicago and nested Melilotus within it.
Trigonias
Trigonias is an extinct hornless rhinoceros genus (Rhinocerotidae) from the late Eocene, about 35 million years ago, of North America; species include T. osborni and T. wellsi, known from Chadron Formation quarries in Weld County, Colorado.
Trigonidiidae
Trigonidiidae (Saussure, 1874) is a family of small crickets in Grylloidea with subfamilies Trigonidiinae (sword-tail crickets, trigs) and Nemobiinae (ground crickets), about 1,048 extant species, originating in the Late Jurassic.
Trigoniidae
Trigoniidae (brooch clams) is a bivalve family with a schizodont hinge, once globally diverse with about 50 fossil genera but now reduced to about seven Neotrigonia species found only around Australia.
Trigonitis
Trigonitis: inflammation or benign squamous metaplasia (pseudomembranous trigonitis) of the bladder trigone, affecting up to 40% of adult women, estrogen-linked, diagnosed by cystoscopy, causing UTI-like symptoms with negative cultures.