All articles starting with E
17,681 articles
Étale morphism
An étale morphism, or étale map, is a morphism of schemes that is smooth of relative dimension 0, the analog of a local diffeomorphism or covering map in topology.
Etalon (satellite)
Etalon is a pair of Russian passive geodetic satellites, Etalon-1 and Etalon-2, launched in 1989 with GLONASS satellites and covered in corner-cube retroreflectors for satellite laser ranging.
Etan Cohen (איתן כהן)
Etan Cohen (איתן כהן), born 1974 in Israel, is an Israeli-American comedy screenwriter and director of Tropic Thunder, Men in Black 3, Get Hard, and Holmes & Watson, distinct from Ethan Coen.
Etana
Etana is a legendary shepherd-king of Kish named in the Sumerian King List, placed around 2800 BCE, and the hero of an Akkadian epic about riding an eagle.
Etanercept
Etanercept (Enbrel), a p75 TNF receptor-Fc fusion protein and first FDA-approved Fc-fusion drug (1998), blocks TNF-α and TNF-β for RA, PsA, AS, psoriasis, and JIA, with biosimilars Erelzi and Eticovo.
Etango uranium project
The Etango uranium project, formerly known as Goanikontes, is a large undeveloped uranium mine in Namibia's Erongo Region owned by Australia-listed Bannerman Energy, holding 207 million pounds of contained U3O8.
Etangs de la Champagne humide
Etangs de la Champagne humide, Ramsar site no. 514 (designated 5 April 1991), the largest Ramsar wetland of metropolitan France at 255,800 ha across Aube, Marne, and Haute-Marne, with over 400 medieval fish ponds, four reservoir lakes, and nearly 150,000 wintering waterbirds.
Etaoin shrdlu
Etaoin shrdlu: nonsense phrase from the first two columns of Linotype keyboard keys, typed by operators to flag bad hot-metal lines, occasionally printed by mistake, and a mnemonic for English letter frequency.
ETAP (software)
ETAP (Electrical Transient Analyzer Program) is commercial software for modeling, design, analysis, and automation of electrical power systems, first released in 1986 by Operation Technology of Irvine, California.
Etawah (इटावा)
Etawah (इटावा) is a city on the Yamuna River in Uttar Pradesh, India, headquarters of Etawah district, near the Yamuna–Chambal confluence; Census 2011 counted 15,81,810 district residents across 2,311 sq km.
ETC!ETC!
ETC!ETC! is the stage name of Jose Guerrero, a Los Angeles-born DJ and producer of moombahton, trap, and electro house who began releasing tracks in 2008.
ETCCDI indices
ETCCDI indices are a standardized set of 27 climate extremes indices for temperature and precipitation, so that extreme-event statistics from different countries and climate models can be compared directly.
etcd
etcd is a distributed, strongly consistent key-value store created at CoreOS in 2013, best known as Kubernetes' backing store, replicating data through the Raft consensus protocol.
Etch A Sketch
Etch A Sketch (L'Écran Magique) is a mechanical drawing toy invented by André Cassagnes, sold by Ohio Art from 1960 and now owned by Spin Master; two knobs move a stylus through aluminum powder, and shaking erases.
Etched
Etched is a semiconductor startup, founded in 2022 by Gavin Uberti, that builds Sohu, a chip hard-wired for transformer-model inference, with over $1 billion in customer contracts.
Etched carnelian beads
Etched carnelian beads are carnelian beads decorated with white designs drawn in alkaline paste and fixed by heating, first produced in the Indus Valley in the third millennium BC.
Etchells (keelboat)
The Etchells is a one-design racing keelboat about 30 feet long, designed in 1966 by American boatbuilder Skip Etchells and adopted as an international class in 1974.
Etching
Etching is an intaglio printmaking process in which acid bites lines into a copper, zinc, or iron plate through a drawn-through ground; unlike engraving, acid rather than a burin makes the recesses that hold ink.
Etching (microfabrication)
Etching in microfabrication is a process that selectively dissolves or ablates material to transfer lithographic patterns, done wet with chemicals or dry with plasma, dozens of times per chip.
Etchmiadzin Cathedral
Etchmiadzin Cathedral (Էջմիածնի Մայր տաճար), in Vagharshapat, Armenia, is the mother cathedral of the Armenian Apostolic Church, traditionally built 301–303, seat of the Catholicos, and a 2000 UNESCO World Heritage site.
Etel Adnan (إيتيل عدنان)
Etel Adnan (إيتيل عدنان), 1925–2021, Lebanese-American poet, essayist, novelist, and painter; author of Sitt Marie Rose; wrote in French and English; known for leporellos, Mount Tamalpais paintings, documenta 13, Whitney Biennial, and the 2020 Griffin Poetry Prize.
Etela Rajender
Etela Rajender, also spelled Eatala Rajender, is an Indian politician and BJP member of the Lok Sabha for Malkajgiri, Telangana, since 2024, after serving as a Telangana minister.
Etelcalcetide
Etelcalcetide (Parsabiv) is an intravenous second-generation calcimimetic peptide, a direct calcium-sensing receptor agonist given three times weekly after hemodialysis to lower PTH in secondary hyperparathyroidism; more potent than cinacalcet but with greater hypocalcemia risk.
Etelebou Oil and Gas Field
The Etelebou Oil and Gas Field is an operating onshore oil and gas field in Bayelsa State, Nigeria, long operated by Shell and known for its flow station at Ogboloma.
Etemenanki
Etemenanki (E-temen-an-ki), the great seven-stage ziggurat of Babylon dedicated to Marduk, about 91 m square and tall, beside the Esagila; rebuilt by Nebuchadnezzar II, cleared by Alexander in 323 BCE, and the leading candidate for the Tower of Babel.
Etentamig
Etentamig (ABBV-383, formerly TNB-383B) is AbbVie's investigational BCMA x CD3 bispecific T-cell engager for multiple myeloma and AL amyloidosis; its Phase 3 CERVINO trial reported 74% ORR and PFS hazard ratio 0.40 versus standard therapies.
Eteplirsen
Eteplirsen (Exondys 51) is a phosphorodiamidate morpholino oligomer inducing exon 51 skipping in Duchenne muscular dystrophy, FDA accelerated approval 2016, EU-refused, controversial efficacy evidence, ~13% of DMD patients eligible.
Eteri Tutberidze
Eteri Tutberidze, also known as Eteri Georgievna Tutberidze, is a Georgian-Russian figure skating coach, head coach at Sambo-70 in Moscow, whose students won three Olympic titles between 2014 and 2022.
Eteriani
Eteriani (ეთერიანი, "the tale of Eteri") is a Georgian folk lyrical-romantic epic of the tragic love of Abesalom and Eteri, surviving in roughly 70 oral texts.
Eternal (group)
Eternal were a British R&B girl group formed in 1992 (Easther and Vernie Bennett, Kéllé Bryan, Louise Nurding), known for Stay, Power Of A Woman, and the 1997 UK Number 1 I Wanna Be The Only One with BeBe Winans; disbanded 2000.