All articles starting with S
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Sega Genesis Classics
Sega Genesis Classics (SEGA Mega Drive Classics) is a 2018 d3t-developed Sega compilation of about 50 Genesis games with rewind, region switching, and online play, delisted from digital stores in December 2025.
Sega Genesis Mini
Sega Genesis Mini (Mega Drive Mini, メガドライブミニ): Sega's 2019 mini console replicating the 1988 Genesis, developed with M2, 42 built-in games, two controllers, $79.99; followed by the 60-game Genesis Mini 2.
Sega Hard Girls
Sega Hard Girls (セガ・ハード・ガールズ), also called SeHa Girls, is Sega's project anthropomorphizing its consoles as girls, designed by KEI, spanning light novels, the 2014 anime Hi☆sCoool! SeHa Girls, manga, and the 2016 Neptunia crossover game.
Sega Pico
The Sega Pico, or Kids Computer Pico, is an educational video game console from Sega, released in Japan in 1993 and marketed as an electronic picture book.
Sega Rally Championship
Sega Rally Championship (セガラリー チャンピオンシップ) is a 1994/1995 Sega AM3 arcade rally racer on Model 2, directed by Kenji Sasaki, produced by Tetsuya Mizuguchi, with surface-based physics, a acclaimed Saturn port, and Sega Rally 2 as sequel.
Sega Sammy Holdings (セガサミーホールディングス株式会社)
Sega Sammy Holdings (セガサミーホールディングス株式会社), Japanese holding company formed October 2004 from the SEGA–Sammy merger; runs Entertainment Contents, Pachislot & Pachinko, and Gaming businesses; FY2026/3 sales ¥487.5 billion.
Sega Saturn (セガサターン)
Sega Saturn (セガサターン), Sega's 32-bit CD-ROM console launched in Japan 22 November 1994 at ¥44,800, eleven days before PlayStation. Dual SH2 CPUs; about 9.26 million sold; surprise May 1995 US launch doomed it in the West.
Segedunum
Segedunum, the Roman fort at Wallsend, Tyne and Wear, marked the eastern end of Hadrian's Wall. Built about AD 124–125, garrisoned by 480 infantry and 120 cavalry, occupied about 300 years to c. AD 380, now a museum and UNESCO World Heritage Site.
Segerseni
Segerseni was a ruler of Lower Nubia around 2000 BC, known from two rock inscriptions that give him an Egyptian-style royal titulary; his Nubian name suggests Nubian ancestry, and his dating is disputed.
Segesta
Segesta, also called Egesta, was the principal Elymian city of western Sicily, standing on Monte Barbaro, whose rivalry with Selinus drew in Athens and Carthage in the fifth century BC.
Segisamo
Segisamo was a Roman city in the Duero valley of northern Spain, beneath the modern town of Sasamón, Burgos, known as the site of Augustus's camp.
Seglamen
Seglamen is an archaeological site in the highlands of Tigray, northern Ethiopia, southwest of Aksum, whose pre-Aksumite finds, including a royal South-Arabian inscription, predate traits of Proto-Aksumite Aksum.
Segment (company)
Twilio Segment (formerly Segment.io), founded 2011 by Peter Reinhardt and three cofounders in San Francisco, is a customer data platform routing customer events via one API; Twilio acquired it in 2020 for about $3.2 billion in stock.
Segment Anything Model (SAM)
The Segment Anything Model (SAM) is a promptable image-segmentation model released by Meta AI in April 2023, with the SA-1B dataset of over 1.1 billion masks; SAM 2 extended it to video in 2024.
Segment display
A segment display is an electronic display that forms characters by switching fixed pre-shaped segments on and off, typically seven bars per digit showing 0 through 9.
Segment reporting
Segment reporting is the disclosure of revenue, profit or loss, and assets for a company's operating segments under IFRS 8 and ASC 280, following the management approach.
Segment routing
Segment routing (SR) is a source-routing network architecture, standardized by the IETF in RFC 8402 in 2018, that steers packets through ordered lists of instructions called segments.
Segment routing over IPv6
Segment routing over IPv6 (SRv6) is a network architecture, defined in RFC 8402 and RFC 8986, that encodes an explicit end-to-end path as a list of instructions in IPv6 headers.
Segmental arterial mediolysis
Segmental arterial mediolysis is a rare, non-inflammatory arterial disease that weakens medium-sized artery walls, causing dissections, aneurysms, and hemorrhage, most often in abdominal visceral arteries.
Segmental bridge
A segmental bridge, also called a segmental concrete bridge, is a concrete bridge whose deck is built from short segments joined by post-tensioning, first used in Europe in the 1950s.
Segmental lining (tunnel)
A segmental lining is a tunnel wall built from precast reinforced-concrete segments erected ring by ring behind a tunnel boring machine, serving as the permanent support of shield-driven tunnels.
Segmental myoclonus
Segmental myoclonus (ICD-11 8A06.1) is rhythmic myoclonus limited to one or contiguous spinal or brainstem segments, typically 1–3 Hz with 50–500 ms EMG bursts, no EEG correlate, caused by local lesions, and often refractory to clonazepam and botulinum toxin.
Segmental odontomaxillary dysplasia
Segmental odontomaxillary dysplasia, first described in 1987, is a rare developmental condition in which one side of the upper jaw grows excessively, with missing teeth.
Segmental spinal dysgenesis
Segmental spinal dysgenesis (SSD), also called spinal segmental dysgenesis, is a rare congenital spinal dysraphism with localized agenesis of the lumbar or thoracolumbar spine, severe kyphoscoliosis, segmental spinal cord malformation, paraparesis, and lower limb deformities; first defined by Scott et al in 1988.
Segmental venous malformation
Segmental venous malformation, also called Bockenheimer syndrome or genuine diffuse phlebectasia, is an ultra-rare congenital, progressive venous malformation of the limbs affecting veins of all sizes, with pain, swelling, and ulceration.
Segmentation (biology)
Segmentation (metamerism) in biology: repeated body units along the anterior-posterior axis in arthropods, annelids, and chordates; Drosophila gene cascade, vertebrate segmentation clock, and homology-versus-convergence debate.
Segmentation fault
A segmentation fault, also called an access violation, is a fault raised when a program accesses memory it is not permitted to access, usually terminating it.
Segmentectomy
Segmentectomy, first described in 1939, is an anatomical lung resection removing one or more bronchopulmonary segments to treat small tumors while preserving healthy tissue, an alternative to lobectomy.
Segmented labor market
A segmented labor market is a labor market divided into distinct segments with their own wage-setting rules, challenging the neoclassical model of a single competitive market.
Segmented mirror
A segmented mirror is a telescope primary mirror built from smaller hexagonal segments aligned to act as one surface, used in the Keck telescopes and JWST.