EM, Em or em may refer to:

Arts and entertainment

Music

* EM, the E major musical scale * Em, the

E minor E minor is a minor scale based on E, consisting of the pitches E, F, G, A, B, C, and D. Its key signature has one sharp. Its relative major is G major and its parallel major is E major. The E natural minor scale is: : Changes needed ...

musical scale *

Electronic music Electronic music is a genre of music that employs electronic musical instruments, digital instruments, or circuitry-based music technology in its creation. It includes both music made using electronic and electromechanical means ( electroa ...

, music that employs electronic musical instruments and electronic music technology in its production *

Encyclopedia Metallum Encyclopaedia Metallum: The Metal Archives (commonly known as Metal Archives per the URL or abbreviated as MA) is an online encyclopedia based upon musical artists who predominantly perform heavy metal music along with its various sub-genres. E ...

, an online metal music database * Eminem, American rapper

Other uses in arts and entertainment

* ''Em'' (comic strip), a comic strip by Maria Smedstad

Companies and organizations

European Movement The European Movement International is a lobbying association that coordinates the efforts of associations and national councils with the goal of promoting European integration, and disseminating information about it. History The origins of th ...

, an international lobbying association * Aero Benin (IATA code), a defunct airline *

Empire Airlines Empire Airlines is a passenger and cargo airline based in Hayden, Idaho, near Coeur d'Alene. It operates over 120 scheduled cargo flights a day in 18 US states and Canada. Empire also started passenger service within Hawaii, under the name "Oh ...

(IATA code), a charter and cargo airline based in Idaho, US *

Erasmus Mundus The European Union's Erasmus Mundus programme (named after Erasmus, the Renaissance scholar) aims to enhance quality in higher education through scholarships and academic co-operation between the EU and the rest of the world. The three main objecti ...

, an international student-exchange program * ExxonMobil, a large oil company formed from the merger of Exxon and Mobil in 1999 * La République En Marche! (sometimes shortened to "En Marche!"), a major French political party

Economics

Emerging markets An emerging market (or an emerging country or an emerging economy) is a market that has some characteristics of a developed market, but does not fully meet its standards. This includes markets that may become developed markets in the future or wer ...

, nations undergoing rapid industrialization

Language and typography

Language

* M, a letter of the modern Latin alphabet, in English and other languages * Em (Cyrillic) (М / м), a letter of the Cyrillic alphabet *

Em (digraph) This is a list of digraphs used in various Latin alphabets. Capitalisation involves only the first letter (''ch'' becomes ''Ch'') unless otherwise stated (''ij'' becomes ''IJ''). Letters with diacritics are arranged in alphabetic order accordin ...

, a digraph in Portuguese * Em, the third-person singular oblique

Spivak pronoun The Spivak pronouns are a set of gender-neutral pronouns in English promulgated on the virtual community '' LambdaMOO'' based on pronouns used in a book by American mathematician Michael Spivak. Though not in widespread use, they have been employ ...

Typography

em (typography) An em (from English '' em quadrat'') is a unit in the field of typography, equal to the currently specified point size. For example, one em in a 16-point typeface is 16 points. Therefore, this unit is the same for all typefaces at a given point ...

, a unit of measurement * em dash, a dash that is one em wide *

em space An em (from English '' em quadrat'') is a unit in the field of typography, equal to the currently specified point size. For example, one em in a 16-point typeface is 16 points. Therefore, this unit is the same for all typefaces at a given point ...

or mutton, a space that is one em wide

Management

* Emergency management, a discipline that studies dealing with and avoiding risks *

Energy management Energy management includes planning and operation of energy production and energy consumption units as well as energy distribution and storage. Objectives are resource conservation, climate protection and cost savings, while the users have per ...

, planning and operation of energy production and energy consumption units * Environmental management, the management of the interaction of human societies with the environment

Places

El Monte, California } El Monte ( Spanish for "The Mountain") is a city in Los Angeles County, California, United States. The city lies in the San Gabriel Valley, east of the city of Los Angeles. El Monte's slogan is "Welcome to Friendly El Monte" and is historica ...

, a city in the United States *

El Monte, Chile El Monte is a Chilean city and commune in Talagante Province, Santiago Metropolitan Region. As of 2007, it had a population of 29,568. Geography El Monte can be found on the north bank of the Mapocho River in the Chilean Central Valley approxim ...

, a city in Chile

Science

Biology

Effective microorganism Effective microorganisms (EM) are various blends of common predominantly anaerobic microorganisms in a carbohydrate-rich liquid carrier substrate (molasses nutrient solution) of ''EM Research Organization, Inc.'',''Effective Microorganisms'' ''EM'' ...

s, a series of products intended to improve soil quality and plant growth *

Extracellular matrix In biology, the extracellular matrix (ECM), also called intercellular matrix, is a three-dimensional network consisting of extracellular macromolecules and minerals, such as collagen, enzymes, glycoproteins and hydroxyapatite that provide s ...

, the connective tissue supporting cells in multicellular organisms * Membrane potential (''E''_m), of a cell

Computing

* , emphasis HTML element *

End of medium The C0 and C1 control code or control character sets define control codes for use in text by computer systems that use ASCII and derivatives of ASCII. The codes represent additional information about the text, such as the position of a cursor, ...

, ISO C0 control code ^Y *

Empirical modelling Empirical modelling refers to any kind of (computer) modelling based on empirical observations rather than on mathematically describable relationships of the system modelled. Empirical Modelling Empirical Modelling as a variety of empirical mod ...

, a unit of measurement in Web design *

eM Client eM Client is a Windows and macOS based email client for sending and receiving emails, managing calendars, tasks, contacts, and notes. Live chat is integrated as well. It was developed as a user-friendly alternative to existing email clients and c ...

E-Mail client

Medicine

* Emergency medicine, a medical specialty dealing with acute illnesses and injuries that require immediate attention *

Erythema multiforme Erythema multiforme (EM) is a skin condition that appears with red patches evolving into target lesions, typically on both hands. It is a type of erythema possibly mediated by deposition of immune complexes (mostly IgM-bound complexes) in th ...

, a skin condition that usually follows an antecedent infection or drug exposure *

Erythromelalgia Erythromelalgia or Mitchell's disease (after Silas Weir Mitchell (physician), Silas Weir Mitchell) is a rare vascular peripheral pain disorder in which blood vessels, usually in the lower extremities or hands, are episodically blocked (frequently ...

, a disorder that typically affects the skin of the feet and/or hands, causing redness, heat and pain *

Extensive metabolizer Pharmacogenomics is the study of the role of the genome in drug response. Its name ('' pharmaco-'' + ''genomics'') reflects its combining of pharmacology and genomics. Pharmacogenomics analyzes how the genetic makeup of an individual affects the ...

, a term used in pharmacogenomics to refer to individuals with normal metabolic activity

Physics

Exametre The following are examples of orders of magnitude for different lengths. __TOC__ Overview Detailed list To help compare different orders of magnitude, the following list describes various lengths between 1.6 \times 10^ metres and 10^ ...

or exameter (Em), an SI unit of length equal to 10¹⁸ metres *

Electromagnetic spectrum The electromagnetic spectrum is the range of frequencies (the spectrum) of electromagnetic radiation and their respective wavelengths and photon energies. The electromagnetic spectrum covers electromagnetic waves with frequencies ranging fro ...

, the range of all possible frequencies of electromagnetic radiation * Electromigration, the transport of conducting solid material caused by electric current through it *

Electromagnetism In physics, electromagnetism is an interaction that occurs between particles with electric charge. It is the second-strongest of the four fundamental interactions, after the strong force, and it is the dominant force in the interactions of ...

, one of the fundamental physical forces *

Electromechanics In engineering, electromechanics combines processes and procedures drawn from electrical engineering and mechanical engineering. Electromechanics focuses on the interaction of electrical and mechanical systems as a whole and how the two system ...

, combines electrical engineering and mechanical engineering

Other uses in science and technology

* Nikon EM, an SLR camera made by the Nikon Corporation in the late 1970s *

Electron microscope An electron microscope is a microscope that uses a beam of accelerated electrons as a source of illumination. As the wavelength of an electron can be up to 100,000 times shorter than that of visible light photons, electron microscopes have a hi ...

, a type of microscope that uses electrons to "illuminate" a specimen and create an enlarged image *

Electron multiplier An electron multiplier is a vacuum-tube structure that multiplies incident charges. In a process called secondary emission, a single electron can, when bombarded on secondary-emissive material, induce emission of roughly 1 to 3 electrons. If an el ...

, a vacuum-tube structure that multiplies incident charges by means of secondary emission * Atlantic Equatorial mode, a climate pattern of the Atlantic Ocean *

Expectation–maximization algorithm In statistics, an expectation–maximization (EM) algorithm is an iterative method to find (local) maximum likelihood or maximum a posteriori (MAP) estimates of parameters in statistical models, where the model depends on unobserved latent variabl ...

, an algorithm for finding maximum likelihood estimates of parameters in probabilistic models

Other uses

Electrician's mate Electrician's Mate (abbreviated as EM) is a United States Navy and United States Coast Guard occupational rating. The Electrician's Mate's NOS is B210. History The Navy Electrician rating was established in 1883, then promptly disestablished i ...

, an occupational rating in the U.S. Navy and U.S. Coast Guard *

David Em David Em (born 1952) is an American artist known for his pioneering breakthroughs in computer art. Early life David Em was born in 1952 in Los Angeles, California. His father was a petroleum engineer and his mother was an illustrator and water ...

(born 1952), an American computer art pioneer *

EM gauge EM, Em or em may refer to: Arts and entertainment Music * EM, the E major musical scale * Em, the E minor musical scale * Electronic music, music that employs electronic musical instruments and electronic music technology in its production * Ency ...

, a scale used in model railways * ''

Etymologicum Magnum ''Etymologicum Magnum'' ( grc, Ἐτυμολογικὸν Μέγα, ) (standard abbreviation ''EM'', or ''Etym. M.'' in older literature) is the traditional title of a Greek lexical encyclopedia compiled at Constantinople by an unknown lexicogra ...

'', in the bibliography of the largest Byzantine lexicon {{disambiguation