All articles starting with E
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Essential Mix
The Essential Mix, also known as the BBC Radio 1 Essential Mix, is a weekly program running since 1993 in which a different DJ delivers an uninterrupted two-hour mix.
Essential myoclonus
Essential myoclonus, also called hereditary essential myoclonus and largely superseded by myoclonus-dystonia (SGCE), is nonprogressive, isolated myoclonus without secondary cause; ICD-11 8A06.0; treated with clonazepam or levetiracetam.
Essential oil
Essential oils are concentrated volatile plant extracts, typically 20–60 compounds, obtained by steam distillation or cold pressing; used in aromatherapy, flavorings, and fragrances, with moderate-confidence evidence mainly for dysmenorrhea pain.
Essential Phone
The Essential Phone (Essential PH-1) is an Android smartphone announced in 2017 by Essential, the startup founded by Android co-creator Andy Rubin, known for its bezel-free display.
Essential Products
Essential Products was an American consumer technology company founded in 2015 by Andy Rubin, co-creator of Android, best known for the Essential Phone released in 2017.
Essential Science Indicators
Essential Science Indicators (ESI) is a web-based bibliometric tool from Clarivate, introduced in 2001, that ranks researchers, institutions, countries, and journals by output and citation impact.
Essential spectrum
The essential spectrum of a linear operator, denoted σess(T), is the part of its spectrum unchanged by compact perturbations, with key applications to Schrödinger operators in quantum mechanics.
Essential thrombocythemia
Essential thrombocythemia is a chronic blood cancer and myeloproliferative neoplasm in which the bone marrow makes too many platelets, raising the risk of clotting and bleeding.
Essential tremor
Essential tremor (ET), also called benign essential or familial tremor, is the most common tremor disorder, causing bilateral action tremor of the hands, sometimes head or voice; treated with propranolol, primidone, topiramate, DBS, or focused ultrasound.
Essential Utilities
Essential Utilities, Inc. (NYSE: WTRG) is a Pennsylvania holding company providing regulated water, wastewater, and natural gas services to about 5.5 million people in nine states.
Essentialism
Essentialism is the metaphysical doctrine that at least some objects have essential properties defining what they are, contrasted with accidental properties; rooted in Aristotle, reworked by Locke, revived by Kripke and Fine, and debated over natural and social kinds.
Essentially non-oscillatory scheme
An essentially non-oscillatory (ENO) scheme is a high-order numerical method for hyperbolic partial differential equations that avoids spurious oscillations near shocks via adaptive stencil selection.
Essentials (PlayStation)
Essentials is the base membership plan of PlayStation Plus, Sony's subscription service for PlayStation 4 and 5 consoles. It provides monthly games, online multiplayer, discounts, and 100 GB of cloud storage.
Essequibo (landform)
The Essequibo is Guyana's largest river, rising in the Acarai Mountains near Brazil and flowing north through rainforest and savannah to a wide estuary on the Atlantic Ocean.
Essequibo (protected area)
Essequibo (protected area) covers FEOW freshwater ecoregion 310, the Essequibo River basin in Guyana and southeastern Venezuela, its 58 endemic fish species, its Amazon corridor link via the Rupununi, and protected areas including Iwokrama, Kaieteur, Kanuku, and Kanashen.
Essex
Essex is a county in the East of England governed by Essex County Council and twelve district councils, with Thurrock and Southend-on-Sea outside its area.
Essex (whaleship)
The Essex was a Nantucket whaleship rammed and sunk by a sperm whale in the Pacific on November 20, 1820; its crew's three-month open-boat ordeal inspired Melville's Moby-Dick.
Essex Agricultural and Technical High School
Essex Agricultural and Technical High School, known regionally as Essex Aggie and now called Essex Tech, is a public agricultural and technical high school in Danvers, Massachusetts.
Essex County Cricket Club
Essex County Cricket Club (Essex CCC), founded 14 January 1876 at Chelmsford's Shire Hall, is a first-class English county club based at the Ambassador Cruise Line Ground, Chelmsford, with eight listed County Championship titles and a 1979-1992 golden era.
Essex County, Massachusetts
Essex County, Massachusetts: northeastern coastal county founded 1643, second-most-populous in the state (809,829 in 2020; est. 826,653 in 2025); county government abolished July 1, 1999, functions transferred to the Commonwealth.
Essex County, New Jersey
Essex County, New Jersey: county seat Newark; third most populous NJ county (863,728 in 2020, est. 896,379 in 2025), 126.09 sq mi, 22 municipalities, County Executive government since 1977, established 1682.
Essex E. Finney Jr.
Essex E. Finney Jr. is an American agricultural engineer who led the USDA's Agricultural Research Service and was elected to the National Academy of Engineering in 1994.
Essex girl
Essex girl: a British derogatory stereotype of young women from Essex as unintelligent, promiscuous, and materialistic; first used in print as invective in 1991, entered the OED in 1997, and removed from the Oxford Advanced Learner's Dictionary in 2020 after the Essex Girls Liberation Front campaign.
Essex Honey
Essex Honey is the fifth studio album by the English musician Dev Hynes, released as Blood Orange in 2025, exploring grief for his mother and his Essex childhood.
Essex man
Essex man: British political stereotype coined by Simon Heffer in the Sunday Telegraph, 1990, for the working-class, home-owning Essex voter who switched to Thatcher's Conservatives; source of Mondeo Man and later archetypes.
Essex Senior Football League
Essex Senior Football League (ESL), an English men's football league founded in 1971 at Chelmsford; its Premier Division sits at Step 5 of the National League System, tier 9, feeding the Isthmian League Division One North.
Essex-class aircraft carrier
The Essex-class aircraft carrier, also known as the Essex class, was a class of 24 fleet carriers built for the United States Navy between 1942 and 1950.
Essie Davis
Essie Davis (Esther Davis), Australian actress born 1970 in Hobart, Tasmania; NIDA graduate known for Phryne Fisher in Miss Fisher's Murder Mysteries and Amelia in The Babadook; Olivier Award 2003, Tony nominee, two AACTA wins.
Essie Mae Washington-Williams
Essie Mae Washington-Williams was an American retired schoolteacher who publicly identified herself as the mixed-race daughter of South Carolina senator James Strom Thurmond in 2003.
Essilor
Essilor, also known as Essilor International, is a French ophthalmic lens maker formed in 1972 from the merger of ESSEL and SILOR, and became the world's leading lens manufacturer.