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Single Embryo Transfer
Single embryo transfer (SET, elective eSET) places one IVF embryo per cycle to avoid multiple pregnancy; fresh live birth is lower than double transfer but cumulative outcomes match, and ESHRE, NICE, and ASRM recommend it for good-prognosis patients.
Single episode depressive disorder
Single episode depressive disorder is an ICD-11 diagnosis (code 6A70) for a person who has had exactly one depressive episode, with no prior episodes and no history of mania.
Single Euro Payments Area
The Single Euro Payments Area (SEPA) is a harmonized payments area covering 41 European countries, including non-EU ones like Switzerland and the United Kingdom, under one scheme rulebook.
Single European Act
The Single European Act is a treaty signed in 1986 that made the first major revision of the Treaty of Rome and committed the European Community to a single internal market by 1992.
Single European Sky
The Single European Sky (SES) is a European Union initiative, launched in 2004, to replace fragmented national airspaces with a harmonized, performance-driven air traffic management system.
Single European Sky ATM Research
Single European Sky ATM Research (SESAR) is the European Union's program for modernizing air traffic management, launched as the technological pillar of the Single European Sky.
Single flux quantum
Single flux quantum (SFQ) is a superconducting digital logic scheme in which voltage pulses, each integrating to exactly one magnetic flux quantum, carry information; RSFQ logic, introduced in 1985, is its best-known form.
Single in Seoul (싱글 인 서울)
Single in Seoul (싱글 인 서울) is a 2023 South Korean romantic comedy directed by Park Bum-su, starring Lee Dong-wook, Lim Soo-jung, and Esom, about an influencer and an editor making a book on single life; released November 29, 2023, 103 minutes, 400,681 admissions.
Single instruction, multiple data
Single instruction, multiple data (SIMD) is a computer architecture class, one of the four categories of Flynn's 1966 taxonomy, in which one instruction operates on many data elements simultaneously.
Single Integrated Operational Plan
The Single Integrated Operational Plan (SIOP) was the U.S. strategic nuclear war plan from 1960 to 2003, produced by the JSTPS with the NSTL target list, first as SIOP-62, later replaced by OPLAN 8044 and OPLAN 8010.
Single Ladies (Put a Ring on It)
Single Ladies (Put a Ring on It) is a 2008 Beyoncé single from I Am... Sasha Fierce, written with Tricky Stewart and The-Dream; it topped the Billboard Hot 100 for four weeks and won three 2010 Grammys including Song of the Year.
Single Ladies (TV series)
Single Ladies (2011–2015) is a VH1 comedy-drama, the network's first hour-long scripted series, produced with Queen Latifah's Flavor Unit. Set in Atlanta, it starred Stacey Dash, LisaRaye McCoy, Charity Shea, and Denise Vasi across four seasons and 52 episodes.
Single malt Scotch
Single malt Scotch whisky is Scotch distilled at one distillery from water and malted barley only, in copper pot stills, matured in Scotland at least three years, bottled at 40% ABV minimum.
Single malt whisky
Single malt whisky is whisky distilled in pot stills at one distillery from water and malted barley alone; legally defined for Scotch, matured three years in oak casks up to 700 litres, and now produced worldwide.
Single market
A single market, also called an internal market, is an integrated economic area where goods, services, capital, and people move freely; the EU launched its single market in 1993.
Single mixed refrigerant process
The single mixed refrigerant process is an LNG liquefaction cycle in which one closed loop of a mixed refrigerant cools natural gas, best known as Black & Veatch's PRICO process.
Single Model Large Ensemble
A single model large ensemble, formally a single-model initial-condition large ensemble (SMILE), is a set of many climate simulations run with one climate model under one forcing scenario.
Single non-transferable vote
Single non-transferable vote (SNTV): one candidate-centered vote per voter in multi-member districts, top vote-getters elected; semi-proportional; used in Japan 1947-1993, South Korea, Taiwan, Jordan, Afghanistan, Vanuatu.
Single organ vasculitis
Single organ vasculitis (SOV), per the 2012 Chapel Hill nomenclature, is vasculitis of any vessel size confined to one organ without systemic vasculitis; focal forms are often cured by resection, diffuse forms need immunosuppression.
Single Papa
Single Papa is a 2025 Hindi Netflix comedy-drama, six episodes, starring Kunal Kemmu as divorced man-child Gaurav Gehlot who adopts baby Amul; created by Ishita Moitra and Neeraj Udhwani, renewed for Season 2 in January 2026.
Single parent
Single parent: a person raising children without a co-resident spouse or partner, also called lone parent. Definitions vary by agency; about 25% of US children and 10-25% of OECD children live in single-parent households.
Single Parents (TV series)
Single Parents (シングル・ペアレンツ) is an ABC sitcom created by Liz Meriwether and J.J. Philbin, starring Taran Killam and Leighton Meester as single parents; 45 episodes, 2018–2020, cancelled after two seasons.
Single person
Single person: an unpartnered adult, often in a one-person household. Distinguished from living alone, social isolation, and loneliness; US one-person households reached 29% in 2025.
Single pivot suspension
Single pivot suspension is a bicycle rear suspension design in which a swingarm rotates about a single pivot on the main frame, with a shock absorber controlling its motion.
Single point mooring
A single point mooring, or SPM, is an offshore buoy or fixed tower where tankers moor and load or unload liquid cargo, swinging freely with wind and current.
Single point of failure
A single point of failure (SPOF), also called a central point of failure, is any component whose own failure stops a system or critical function from operating.
Single Quiver
Single Quiver is a Basque Country surf, skate, and paddle surf retailer (singlequiver.com), founded in Leioa, with physical stores in Barakaldo and El Puerto de Santa María, selling surfboards, wetsuits, Carver and YOW surfskates, and SUP gear.
Single Resolution Board
The Single Resolution Board (SRB) is the EU agency, created in 2014, that decides how failing euro-area banks are resolved and manages the 78-billion-euro Single Resolution Fund.
Single Salma
Single Salma (सिंगल सलमा) is a 2025 Hindi rom-com-drama directed by Nachiket Samant, starring Huma Qureshi as a 33-year-old Lucknow engineer; released theatrically 31 October 2025 and on Netflix December 2025.
Single scattering albedo
The single scattering albedo (SSA) is the fraction of light removed from a beam by scattering rather than absorption, ranging from 0 for pure absorption to 1.