E (disambiguation)

Look up E, e, è in Wiktionary, the free dictionary.

E is the fifth letter of the Latin alphabet.

E may also refer to:

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

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-layer or the Kennelly-Heaviside layer, part of the ionosphere
E or Young's modulus, a measure of stiffness in solid mechanics
E, the symbol for energy in equations concerning mass-energy equivalence
E, the symbol for an electric field
e (or e^-) or electron, a fundamental subatomic particle
e or elementary charge, the electric charge carried by a single proton
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 the base of natural logarithms
E notation or scientific notation, a way of writing very large, and very small, numbers
E, 14 in hexadecimal and other positional numeral system
E or Expected value, the average expected outcome of a trial in probability theory
E or exa-, the SI prefix for 10¹⁸
∃ (a backwards E) or existential quantification, the symbol for "there exists...", in predicate logic

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 (text editor), a Windows text editor
e (verification language), a verification language used in Specman Elite
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

Modern culture

E!, Entertainment Television, an American cable and satellite TV network
E (film), a 2005 Tamil film
E (musical note), the third note of the C major scale
E/The Environmental Magazine, a bi-monthly magazine and website
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, lead guitarist for the rock band Eels
E or everyone, a ESRB video gaming rating symbol

Transport and commerce

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

Geography

E Township, Maine, an unincorporated community in USA
E or east, one of the four cardinal directions
E, East London, England's postal code
E, New Brunswick's postal code

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)
The gamertag e, a pseudonym of Eric Neustadter, the Xbox Live Operations Manager

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. If an internal link led you here, you may wish to change the link to point directly to the intended article.

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E (disambiguation)

Contents

Medicine and genetics

Physics and engineering

Mathematics and logic

Computing and computation

Modern culture

Transport and commerce

Geography

Languages

Other usage