All articles A–Z
519,064 articles
Eland armoured car
The Eland is a South African four-wheeled light armored car built under license from the French Panhard AML and used by the South African Defence Force from the mid-1960s.
Elanir kuzambu (elanirkuzambu)
Elanir Kuzambu (nālikerāñjana, Elaneer Kuzhambu), Ayurvedic anjana AFI 13:1 from Sahasrayoga verse 52; tender coconut water decoction with triphala, barberry, licorice, camphor, honey; applied to inner eyelids for corneal ulcer, pterygium, early cataract.
Elano
Elano (Elano Ralph Blumer, born 1981, Iracemápolis) is a Brazilian former midfielder, two-time Brasileirão and 2011 Libertadores winner with Santos, ex-Shakhtar, Manchester City, Galatasaray, 2010 World Cup player, now Santos youth manager.
Elanor Boekholt-O'Sullivan
Elanor Boekholt-O'Sullivan is a Dutch politician of Democrats 66 and, since February 2026, Minister of Housing and Spatial Planning in the cabinet of Prime Minister Rob Jetten.
Elantris
Elantris is Brandon Sanderson's 2005 debut fantasy novel from Tor Books, set on the Cosmere planet Sel, about Prince Raoden, Princess Sarene, and priest Hrathen amid the fallen city of Elantris and its broken AonDor magic.
Elanus
Elanus, the black-shouldered kites, a genus of four Accipitridae raptor species (caeruleus, leucurus, axillaris, scriptus) that hover-hunt rodents in open tropical and subtropical habitats worldwide; the letter-winged kite is the only nocturnal hawk.
Elanus caeruleus
Elanus caeruleus, the black-winged kite (elanio común), a small gray-and-white Accipitridae raptor of Africa, southern Europe, and Asia, hunting rodents by hovering; Least Concern globally, Near Threatened regionally in South Africa.
Elapegademase
Elapegademase (Revcovi, EZN-2279) is a PEGylated recombinant bovine adenosine deaminase given intramuscularly as enzyme replacement therapy for ADA-SCID; FDA-approved October 2018, replacing pegademase (Adagen).
Elaphoglossum
Elaphoglossum (tongue ferns), a Dryopteridaceae fern genus of 600 to 1,100 species with simple fronds and acrostichoid sori, mostly American tropical epiphytes, five molecular clades, Miocene amber fossil.
Elapidae
Elapidae (F. Boie, 1827) is the snake family of cobras, coral snakes, kraits, mambas, taipans, and sea snakes, defined by short fixed front fangs and predominantly neurotoxic venom, with an early Oligocene origin and a late Miocene Australasian radiation.
ELARIS EM-I trial
ELARIS EM-I (M12-665, NCT01620528), AbbVie's phase 3 trial of elagolix 150 mg once daily and 200 mg twice daily versus placebo in 872 women with endometriosis-associated pain; pivotal for Orilissa approval.
ELARIS EM-II trial
ELARIS EM-II (NCT01931670), AbbVie phase 3 trial of elagolix (Orilissa) 150 mg once daily and 200 mg twice daily versus placebo for 6 months in 817 women with endometriosis-associated pain; both doses met dysmenorrhea and nonmenstrual pelvic pain endpoints.
Elasmobranchii
Elasmobranchii, the elasmobranchs or strap-gills, is the cartilaginous fish subclass of sharks, rays, skates, and sawfish, excluding chimaeras; cartilage skeletons, unfused upper jaws, exposed gill slits, and about 37% of species threatened.
Elasmosaurus
Elasmosaurus platyurus, named by Edward Drinker Cope in 1868, is a long-necked plesiosaur from the Campanian Western Interior Seaway of Kansas with 72 neck vertebrae and a neck over 6 m long; its reversed first reconstruction fueled the Bone Wars.
Elasmotherium
Elasmotherium, also called the Giant Unicorn, is an extinct genus of giant Eurasian rhinoceroses whose last species, the Siberian unicorn, survived until at least 39,000 years ago.
Elastase
Elastase: serine proteases that degrade elastin, including pancreatic elastase (digestive enzyme, basis of the fecal elastase-1 test for EPI) and neutrophil elastase (ELANE-encoded, AAT-inhibited, drug target in COPD and ARDS).
Elasti-Girl
Elasti-Girl, also published as Elasti-Woman, is DC Comics heroine Rita Farr, a founding Doom Patrol member created in 1963 who grows to gigantic or shrinks to microscopic size, distinct from Pixar's Elastigirl.
Elastic averaging
Elastic averaging is a precision-engineering alignment principle that joins two bodies through many compliant contact points whose errors average out under preload, in contrast to kinematic design.
Elastic band path modification
Elastic band path modification is a robot motion planning technique introduced by Sean Quinlan and Oussama Khatib in 1993, where a collision-free path deforms under artificial forces.
Elastic cloaking
Elastic cloaking is the design of a material shell that makes an object invisible to elastic waves, first demonstrated experimentally in a polymer plate in 2012.
Elastic collision
An elastic collision is a collision between bodies in which total kinetic energy is conserved alongside momentum, so no kinetic energy becomes heat or deformation.
Elastic energy
Elastic energy, or elastic potential energy, is the energy stored in an object when it is deformed, such as a stretched spring, and returned as work.
Elastic fiber
An elastic fiber, or elastic tissue, is an extracellular matrix bundle about 90% elastin that lets skin, lungs, blood vessels, and other vertebrate tissues stretch and recoil.
Elastic Heart
Elastic Heart is a 2013 Sia song featuring The Weeknd and Diplo from The Hunger Games: Catching Fire soundtrack, re-recorded solo for 1000 Forms of Fear; its 2015 Maddie Ziegler and Shia LaBeouf video drew controversy.
Elastic metamaterial
An elastic metamaterial is an engineered material that controls elastic wave propagation in solids using local resonances, creating band gaps at wavelengths far larger than its unit cell.
Elastic metasurfaces for mode conversion
Elastic metasurfaces for mode conversion are thin engineered surfaces of subwavelength unit cells that convert elastic waves between longitudinal and transverse modes, reaching near-perfect efficiency.
Elastic modulus
The elastic modulus, also called the modulus of elasticity, is the ratio of stress to strain in a deformed material, a stiffness measure in pascals; Young's, bulk, and shear moduli are its principal forms.
Elastic N.V.
Elastic N.V. is a software company that develops the Elastic Stack, built around the Elasticsearch search engine and Kibana, and sells it as Enterprise Search, Observability, and Security.
Elastic net regularization
Elastic net regularization, also known as the elastic net, is a regression method combining the lasso and ridge penalties, proposed by Hui Zou and Trevor Hastie at Stanford in 2005.
Elastic optical network
An elastic optical network (EON) is an optical transport network that allocates spectrum in small, variable-width frequency slots rather than fixed 50 or 100 GHz channels.