All articles starting with E

Eprodisate

Eprodisate (Kiacta, Fibrillex, NC-503; 1,3-propanedisulfonic acid disodium salt) is an investigational sulfonated inhibitor of amyloid fibril polymerization for AA amyloidosis kidney disease; its first phase 3 trial was positive but a confirmatory trial failed and it was never approved.

EPROM

EPROM, or erasable programmable read-only memory, is non-volatile semiconductor memory storing bits on a floating gate, erased by ultraviolet light; Intel introduced the first device, the 1702, in 1971.

Sep 19, 2026

Eprom (musician)

Eprom is an American experimental bass producer and DJ from San Francisco, based in Portland, Oregon, active since the mid-2000s and one half of the duo SHADES with Alix Perez.

Eprosartan

Eprosartan (Teveten) is a non-biphenyl, non-tetrazole angiotensin II receptor blocker for hypertension, dosed 600-800 mg daily, selective for the AT1 receptor and not metabolized by cytochrome P450.

Eprotirome

Eprotirome (KB2115), a liver-selective thyroid hormone receptor beta agonist from Karo Bio, lowered LDL cholesterol, triglycerides, and Lp(a) in trials but was abandoned after canine cartilage damage and liver injury ended its phase 3 AKKA trial.

EPS Conference on Plasma Physics and Fusion

The EPS Conference on Plasma Physics and Fusion is the annual flagship meeting of the European Physical Society's Plasma Physics Division, first held in Munich in 1966.

eps CrB

eps CrB (Epsilon Coronae Borealis, 13 CrB, HD 143107) is a K2 giant star about 70 parsecs away in Corona Borealis hosting eps CrB b, a 6.7-Jupiter-mass gas giant in a 417.9-day eccentric orbit found by radial velocity in 2012.

EPS Europhysics Prize

The EPS Europhysics Prize, also known as the Europhysics Condensed Matter Prize, is a biennial European prize for discoveries in condensed matter physics, awarded since 1975.

Epsilon

Epsilon is the fifth letter of the Greek alphabet, representing a mid front unrounded vowel. It is also used in mathematics, specifically in the epsilon-delta definition of a limit.

Epsilon (イプシロン) (rocket)

Epsilon (イプシロン) is a Japanese solid-propellant launch vehicle developed by JAXA to launch small satellites at low cost, first flown from the Uchinoura Space Center in 2013.

Epsilon Aurigae

Epsilon Aurigae is an eclipsing binary star in the constellation Auriga, where a visible F-type supergiant fades every 27.1 years behind an opaque disk around a companion B star.

Epsilon Canis Majoris

Epsilon Canis Majoris, commonly called Adhara, is a binary star system in Canis Major and that constellation's second-brightest star, the brightest known extreme ultraviolet source beyond the Sun.

Epsilon Cygni

Epsilon Cygni, or Aljanah, is an orange giant star of magnitude 2.48 in the constellation Cygnus, forming the eastern wing of the Northern Cross about 75 light-years away.

Epsilon Eridani

Epsilon Eridani, also named Ran, is a nearby K2 star in Eridanus, 10.5 light-years from the Sun, hosting the closest known planetary system around a Sun-like star.

Epsilon expansion

The epsilon expansion is a calculational method in critical phenomena that computes critical exponents as power series in ε = 4 − d, introduced by Kenneth Wilson in 1972.

Epsilon Fornacis

Epsilon Fornacis (HD 18907) is a spectroscopic binary star in the southern constellation Fornax, roughly 105 light years away, whose metal-poor primary is over 12 billion years old.

Epsilon Geminorum

Epsilon Geminorum, also called Mebsuta, is a yellow supergiant star in Gemini about 840 light-years away, best known as the target of a rare occultation by Mars in 1976.

Epsilon Indi

Epsilon Indi (ε Ind) is a nearby star system about 11.8 light-years from Earth in the constellation Indus, containing a K-type star, two brown dwarfs, and a giant planet.

Epsilon Indi Ab

Epsilon Indi Ab (Eps Ind Ab) is a cold gas-giant exoplanet about 12 light-years from Earth, directly imaged by the James Webb Space Telescope in July 2023.

Epsilon number

An epsilon number is a transfinite ordinal that is a fixed point of omega exponentiation, satisfying ω^α = α, with ε₀ the first and best known.

Epsilon Orionis

Epsilon Orionis, also known as Alnilam, is a blue supergiant forming the center of Orion's Belt, the brightest and most distant of the three belt stars.

Epsilon Pegasi

Epsilon Pegasi, or Enif, is an orange K-type supergiant about 690 light-years away marking the nose of the winged horse Pegasus, and the constellation's brightest star.

Epsilon Persei

Epsilon Persei, officially named Áldu since 2025, is a bright multiple star system in Perseus, a massive, rapidly rotating Beta Cephei variable about 638 light-years away.

Epsilon Tauri

Epsilon Tauri, formally named Ain, Arabic for "eye", is an orange giant star 146 light-years away in Taurus whose planet Amateru was the first found in an open cluster.

Epsilon Ursae Majoris

Epsilon Ursae Majoris, better known as Alioth, is the brightest star in the constellation Ursa Major, a chemically peculiar A-type variable star about 82.5 light-years away.

Epsilon Virginis

Epsilon Virginis, better known as Vindemiatrix, is a yellow giant star in the constellation Virgo, its third-brightest star, lying about 102 light years from the Sun.

Epsilon-near-zero enhanced nonlinear optics

Epsilon-near-zero enhanced nonlinear optics is the strengthening of nonlinear optical effects, like harmonic generation and all-optical switching, in materials whose electric permittivity approaches zero at a particular wavelength.

Epsilon-near-zero material

An epsilon-near-zero (ENZ) material is an electromagnetic material whose electric permittivity approaches zero at some frequency, enabling field squeezing, perfect absorption, and ultrafast optical switching.

Epsilon-near-zero metasurfaces

Epsilon-near-zero metasurfaces are optical surfaces built from subwavelength nanostructures on materials, typically transparent conducting oxides like indium tin oxide, whose permittivity nears zero, enabling ultrafast switching and beam steering.