E (disambiguation)

"e-" redirects here. For the Internet-related prefix e-, see Wiktionary's entry e-.

E is the fifth letter of the Latin alphabet.

E may also refer to:

1 Commerce and transportation
2 Medicine and genetics
3 Physics and engineering
4 Mathematics and logic
5 Computing and computation
6 Music
7 Modern culture
8 Geography
9 Languages
10 Other usage

Commerce and transportation

€, the euro, the European currency unit
℮, the estimated sign, an EU symbol indicating that the weight or volume of the goods is within specific allowable tolerances
E, international licence plate coding for Spain
E class (disambiguation), various vehicle self-promoted classifications
E, a Polish electric locomotive in PKP classification system
E or Eni, an Italian oil and gas company

Medicine and genetics

E number, a number code for a food additive, an EU labelling requirement
Haplogroup E (mtDNA), a human mitochondrial DNA (mtDNA) haplogroup
Haplogroup E (Y-DNA), a Y-chromosomal DNA (Y-DNA) haplogroup
E or glutamic acid, an amino acid, glutamate
E. coli or Escherichia coli, a bacterium commonly found in the lower intestine
E. coli or Entamoeba coli, a non-pathogenic parasite frequently found in the human intestine
Vitamin E or Tocopherol, a class of chemical compounds

Physics and engineering

e (or e^-) or electron, a fundamental subatomic particle
e or elementary charge, the absolute value of the electric charge carried by a single electron.
e or Coefficient of restitution (COR), a measure of the elasticity of a collision in mechanics
E, the symbol for energy in equations concerning mass-energy equivalence
E or Young's modulus, a measure of stiffness in solid mechanics
E or exa-, the SI prefix for 10¹⁸
E-layer or the Kennelly-Heaviside layer, part of the ionosphere
E, the symbol for an electric field
e or orbital eccentricity, a measure of how much a conic section deviates from a circle
E or Equal Energy spectrum, a definition of white in colour printing
E°, the Standard electrode potential

Mathematics and logic

e (mathematical constant), also known as Euler's number and Napier's constant, a transcendental number and the base of natural logarithms, approximately equal to 2.7
E notation, or scientific notation, a way of writing very large and very small numbers
∃ (a backwards E) or existential quantification, the symbol for "there exists...", in predicate logic; ∃! meaning "there exists only one" (or "there exists exactly one") - see Uniqueness quantification
E, 14 in hexadecimal and other positional numeral system
E or Expected value, the average expected outcome of a trial in probability theory
e, the identity element

Computing and computation

E (complexity), a set of decision problems solvable by a Turing machine in a specific time
E (PC-DOS), a text editor
E (programming language), an object-oriented programming language
e (verification language) hardware verification language
E (text editor), a text editor originally developed at the Stanford AI Lab (Stanford University) in the 1970s
E Text Editor, a Windows text editor
e-mail or electronic mail, mail sent over the internet
e-commerce or electronic commerce, buying and selling over the internet
E equational theorem prover, a modern, high performance prove for first-order logic
Amiga E, a programming language
E or Enlightenment (window manager), a free software open source manager for X Window System

Music

E (musical note), the third note of the C major scale
E major, the scale and key
E minor, the scale and key
E, the stage name of Mark Oliver Everett, lead singer, guitarist, keyboardist and sometime drummer of the rock band Eels
[e], an album from Korean hip-hop group Epik High
E (video), by Eminem

Modern culture

E!, Entertainment Television, an American cable and satellite TV network
E! (Canada):
- E! (Canadian TV system), a defunct over-the-air television system operated by Canwest from 2001 to 2009 (originally known as CH until 2007)
- E! (Canadian TV channel), a Canadian cable/satellite specialty channel owned by Bell Media that launched in November 2010.
E (film), a 2005 Tamil film
e (novel), a 2000 comic novel by Matt Beaumont
E or Edna Mode, a character from the movie The Incredibles
E or the Elohist, one of the four sources of the Torah
E or Eric Murphy, a character in the television series Entourage
E or Mark Oliver Everett, solo artist then lead guitarist for the rock band Eels
E or everyone, an Entertainment Software Rating Board video gaming rating symbol
e or Eric Neustadter, Operations Manager for Xbox Live and frequent co-host of "Major Nelson Radio" podcast

Geography

E Township, Maine, an unincorporated community in USA
River E, a river in Scotland
E or east, one of the four cardinal directions
E postcode area
E, New Brunswick's postal code
E (state) a vassal state in Zhou Dynasty China (1046–256 BCE)

Languages

E language, a language of China
É (temple), Sumerian house or temple
E, the Spivak pronoun meaning "he" or "she"
e, the close-mid front unrounded vowel IPA symbol

Other usage

E band, a range of radio frequencies used by NATO
E#, a team's elimination number
E, another name for the recreational drug Ecstasy (Methylenedioxymethamphetamine)
E (Elohist), one of the sources hypothesised to have formed the Pentateuch.

Latin letter disambiguation
A • B • C • D • E • F • G • H • I • J • K • L • M • N • O • P • Q • R • S • T • U • V • W • X • Y • Z

This disambiguation page lists articles associated with the same Latin letter.
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