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Third Way
Third Way: 1990s center-left political ideology associated with Bill Clinton and Tony Blair, theorized by Anthony Giddens as transcending old social democracy and neoliberalism; variants included Germany's neue Mitte and France's gauche plurielle.
Third World
Third World (Tiers Monde): term coined by Alfred Sauvy in L'Observateur, 14 August 1952, for countries aligned with neither Cold War bloc; later meant poor, developing countries; replaced by Global South.
Third World approaches to international law
Third World approaches to international law (TWAIL) is a critical legal movement, formalized at a 1997 Harvard conference, arguing imperialism shaped international law; spans TWAIL I and II generations led by Anghie, Chimni, and Gathii.
Third-generation cephalosporin resistant Klebsiella pneumoniae
Third-generation cephalosporin resistant Klebsiella pneumoniae (3GC-RKP, ICD-11 MG50.52): K. pneumoniae resistant to ceftriaxone, cefotaxime, or ceftazidime, mainly via ESBL or AmpC enzymes; WHO critical priority, prevalence 29.8–78.7% by setting.
Third-harmonic generation
Third-harmonic generation (THG) is a nonlinear optical process in which light at frequency ω is converted to 3ω, such as 1,064 nm light to 355 nm, first demonstrated in 1967.
Third-order intercept point
The third-order intercept point (IP3, also written TOI) is a theoretical power level at which third-order intermodulation distortion equals the fundamental signal, used to rate RF linearity.
Third-party cookies
Third-party cookies, also called cross-site cookies, are cookies set by a domain other than the page being viewed, allowing a party to recognize a browser across unrelated sites for tracking and advertising.
Third-party custody
Third-party custody is a court order giving a child's care to a non-parent, such as a stepparent, who must first clear a threshold showing against the parent.
Third-party evidence for Apollo Moon landings
Third-party evidence for the Apollo Moon landings (1969–1972) includes lunar samples studied worldwide, laser ranging to retroreflectors, and photos of landing sites by India, Japan, and China.
Third-party logistics
Third-party logistics (3PL) is the practice of paying an outside company to run warehousing, transportation, fulfillment, and returns; the global market reached $1.3 trillion in 2025.
Third-party standing in family proceedings
Third-party standing in family proceedings is the right of a non-parent, such as a grandparent or stepparent, to bring a custody or contact application at all.
Third-person (video games)
Third-person perspective in video games: an external camera, usually behind and above the avatar, showing the character on screen. Covers its history from Spacewar! and Starglider's diegetic camera, design tradeoffs versus first person, and survey data on player preferences.
Third-person shooter
A third-person shooter (TPS) is a video game genre where the player's avatar is seen from an external camera behind the character, rather than through their eyes.
Third-stage haemorrhage
Third-stage haemorrhage (ICD-11 JA43.0; ICD-10 O72.0) is excessive bleeding during the third stage of labour, between fetal and placental delivery, typically from uterine atony or retained placenta.
Third-wave feminism
Third-wave feminism is the feminist movement that began in the United States in the early 1990s, reacting to second-wave feminism, post-feminist backlash, the Anita Hill hearings, and Riot Grrrl, with intersectionality as its core concept.
Third/Sister Lovers
Third/Sister Lovers is Big Star's third album, recorded fall 1974 at Ardent Studios, Memphis, by Alex Chilton and Jody Stephens with producer Jim Dickinson, shelved after rejected 1975 test pressings and released 1978 on PVC.
Thirlmere
Thirlmere is a reservoir in the Lake District, Cumbria, England, built between 1890 and 1894 by damming a natural lake to supply Manchester via Britain's longest gravity-fed aqueduct.
Thirlmere Aqueduct
The Thirlmere Aqueduct is a 96-mile gravity-fed water supply aqueduct built by Manchester Corporation between 1890 and 1925, carrying water from Thirlmere in the Lake District to Manchester.
Thirring model
The Thirring model is a quantum field theory of a self-interacting Dirac fermion in one spatial and one time dimension, introduced by Walter Thirring in 1958.
Thirst (박쥐) (2009 film)
Thirst (박쥐, Bakjwi) is a 2009 South Korean vampire drama directed by Park Chan-wook, starring Song Kang-ho as a Catholic priest who becomes a vampire, adapted loosely from Émile Zola's Thérèse Raquin.
Thirst trap
Thirst trap: internet slang for a social media post, usually a selfie, meant to attract sexual attention or engagement. Coined around 2011 from "thirsty"; now used in influencer marketing, military propaganda, and politics.
Thirteen (2003 film)
Thirteen (2003) is Catherine Hardwicke's directorial debut drama, co-written in six days by Hardwicke and teenage Nikki Reed from Reed's life, starring Evan Rachel Wood, Holly Hunter, and Reed; Sundance Directing Award, Oscar-nominated, $2 million budget.
Thirteen (House)
Thirteen (Remy "Thirteen" Hadley, Dr. Remy Hadley) is a fictional internist on House, M.D., played by Olivia Wilde from Season 4 (2007) to the 2012 finale, defined by her applicant-number nickname and her Huntington's disease storyline.
Thirteen (TV series)
Thirteen is a five-part British psychological thriller miniseries created and written by Marnie Dickens, first shown on BBC iPlayer in February 2016, starring Jodie Comer as Ivy Moxam, who escapes after 13 years in captivity.
Thirteen circuits of Dai Viet
The thirteen circuits of Dai Viet, called thừa tuyên, were the administrative divisions King Le Thanh Tong created in 1466, adding Quang Nam in 1471 after conquering Champa.
Thirteen Colonies
The Thirteen Colonies were British Atlantic-coast colonies in North America, founded 1607–1733, grouped into New England, Middle, and Southern colonies, which declared independence in 1776 and became the first United States.
Thirteen Days (film)
Thirteen Days (2000), Roger Donaldson's historical drama starring Kevin Costner, Bruce Greenwood, and Steven Culp, dramatizes President Kennedy's handling of the 1962 Cuban Missile Crisis and the debates over its historical accuracy.
Thirteen Emperors Scroll
The Thirteen Emperors Scroll (Lidai diwang tu) is a Chinese handscroll in the Museum of Fine Arts, Boston, showing thirteen emperors from the Han to the Sui dynasty.
Thirteen federal judicial circuits
The thirteen federal judicial circuits are the intermediate appellate courts of the US federal judiciary, hearing appeals between the 94 district courts and the Supreme Court.
Thirteen Ghosts
Thirteen Ghosts is a 2001 American horror film directed by Steve Beck, starring Tony Shalhoub, Shannon Elizabeth, Matthew Lillard, and F. Murray Abraham, released by Warner Bros. in October 2001.