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Thomasomys
Thomasomys (Thomas's Oldfield mice), Coues 1884, is the most diverse sigmodontine rodent genus, 51 Andean species in montane forests and paramos, with DNA methods suggesting 81-93 species.
Thomisidae
Thomisidae, crab spiders (family Sundevall, 1833): 172 genera, 2,202 species of ambush predators with crab-like sideways legs, no webs, color-changing flower hunters like Misumena vatia, and mimics such as Phrynarachne.
Thomism
Thomism is the philosophical and theological school founded on Thomas Aquinas (1225–1274), combining Aristotelian metaphysics with Catholic doctrine; distinctive doctrines include the real distinction of essence and existence, and it spans neo-Thomist and analytical revivals.
Thomomys
Thomomys, the western or smooth-toothed pocket gophers, is a genus of burrowing Geomyidae rodents from western North America; since 2025 it holds five species after seven were moved to Megascapheus.
Thompson and Bendix trophies
The Thompson and Bendix trophies were two American air-race prizes of the interwar era: the Thompson for closed-course pylon racing, the Bendix for fastest transcontinental crossing.
Thompson Friction Welding
Thompson Friction Welding is a British manufacturer of rotary friction welding machines in Halesowen, England, and a brand of the KUKA group since the mid-1990s.
Thompson Mann
Thompson Mann (Harold Thompson Mann, 1942-2019), American backstroke swimmer, 1964 Tokyo Olympic gold medalist in the 4x100m medley relay and first person under one minute in the 100m backstroke (59.6); later an internal-medicine physician.
Thompson sampling
Thompson sampling is a randomized Bayesian algorithm for the multi-armed bandit problem, proposed by William R. Thompson in 1933, that selects each action with its posterior probability of being optimal.
Thompson sporadic group
The Thompson sporadic group, written Th and also known as F₃, is one of the 26 sporadic finite simple groups, discovered by John G. Thompson in the mid-1970s.
Thompson Street Capital Partners
Thompson Street Capital Partners is a St. Louis, Missouri private equity firm founded in 2001 by James A. Cooper and Peter S. Finley, investing $50 million to $250 million in founder-led lower-middle-market companies.
Thompson submachine gun
The Thompson submachine gun, also called the Tommy gun, is an American .45 ACP submachine gun produced from 1921, infamous among Prohibition-era gangsters and widely used by Allied troops in World War II.
Thompson Twins
Thompson Twins, British synth-pop band formed 1977 in Sheffield, named after the Tintin detectives Thomson and Thompson despite no twins among members. Hitmaking trio Tom Bailey, Alannah Currie, Joe Leeway; Into The Gap (1984) UK No. 1; became Babble in 1992.
Thompson-Nicola Regional District
Thompson-Nicola Regional District (TNRD), south-central British Columbia regional district incorporated 24 November 1967, headquartered in Kamloops; 10 electoral areas, 11 municipalities, 25 First Nations; 143,680 people (2021) over 44,347 km².
Thompson, Manitoba
Thompson, Manitoba: northern Canadian city founded 1957 around Inco's nickel mines, 765 km north of Winnipeg, known as the Hub of the North; incorporated as a town in 1967 and a city in 1970.
Thomsen and Becker disease
Thomsen and Becker disease are the dominant and recessive forms of myotonia congenita, a CLCN1 chloride-channel disorder causing childhood muscle stiffness with warm-up; Becker is more common and severe.
Thomson (lunar crater)
Thomson is a 117-km-wide impact crater on the lunar far side at 32.32°S, 166.04°E, in the northwestern South Pole-Aitken basin, known for OOS lithology exposures and associated mare flows.
Thomson Corporation
The Thomson Corporation was a Canadian, family-controlled media company that grew into a major newspaper empire before merging with Reuters in 2008 to form Thomson Reuters.
Thomson effect
The Thomson effect is reversible heat absorption or release along a single conductor carrying a current through a temperature gradient, predicted by William Thomson in 1851.
Thomson Industries
Thomson Industries is an American manufacturer of linear motion components and systems, headquartered in Downers Grove, Illinois, known for inventing the Linear Ball Bushing Bearing in 1945.
Thomson Reuters
Thomson Reuters is a company serving legal, tax, accounting, and corporate professionals, controlled by the Thomson family, known for Westlaw, Reuters News, and the CoCounsel AI assistant.
Thomson Reuters v. Ross Intelligence
Thomson Reuters v. Ross Intelligence is a 2020 Delaware copyright lawsuit in which Thomson Reuters sued the legal-AI startup Ross Intelligence for copying Westlaw headnotes to train an AI search tool.
Thomson scattering
Thomson scattering is the elastic scattering of electromagnetic radiation by a free charged particle, the low-energy limit of Compton scattering and the basis of plasma electron diagnostics.
Thomson-CSF
Thomson-CSF was a French defense and professional electronics group formed in 1968, Europe's largest in the field, privatized in 1998 and renamed Thales in 2000.
Thomson–East Coast MRT line
The Thomson–East Coast MRT line (TEL) is Singapore's sixth Mass Rapid Transit line, a driverless railway running from Woodlands North to the east coast, with service beginning in stages in 2020.
Thomson's gazelle
Thomson's gazelle (Eudorcas thomsonii, formerly Gazella thomsonii) is a small East African antelope of Kenya, Tanzania, and Sudan; a migratory short-grass grazer, Serengeti's second most abundant herbivore, running up to 70 km/h and listed Near Threatened.
Thon Maker
Thon Maker, born 1997 in South Sudan, is an Australian 7-foot forward-center drafted 10th overall by the Milwaukee Bucks in 2016, the first straight-from-high-school draftee in over a decade, later playing in Europe, Asia, and Saudi Arabia.
Thonburi campaigns of Taksin
The Thonburi campaigns of Taksin were the military operations by which King Taksin of Siam broke the Burmese occupation after the fall of Ayutthaya in 1767.
Thonburi Kingdom
The Thonburi Kingdom (อาณาจักรธนบุรี) was the Siamese kingdom of 1767 to 1782, founded by King Taksin after Burma destroyed Ayutthaya; his 1782 deposition began the Chakri dynasty in Bangkok.
Thondaradippodi Alvar
Thondaradippodi Alvar (தொண்டரடிப்பொடி ஆழ்வார்), born Vipranarayanar, was an 8th-century Tamil Vaishnava poet-saint, one of the twelve Alvars, whose hymns Tirumalai and Tiruppalliyezhucchi form part of the Nalayira Divya Prabandham.
Thondimuthalum Driksakshiyum
Thondimuthalum Driksakshiyum (തൊണ്ടിമുതലും ദൃക്സാക്ഷിയും) is a 2017 Malayalam crime drama by Dileesh Pothan starring Fahadh Faasil, Suraj Venjaramoodu, and Nimisha Sajayan; a bus chain theft lands a couple and a thief of the same name in a police station, and the film won three National Film Awards.