EM, Em or em may refer to:
Arts and entertainment Music Em, the E minor musical scale Em, the E minor chord Electronic music, music that employs electronic musical instruments and electronic music technology in its production Encyclopedia Metallum, 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 Em (restaurant), a restaurant in Mexico City Aero Benin (IATA code), a defunct airline Empire Airlines (IATA code), a charter and cargo airline based in Idaho, US Erasmus Mundus, an international student-exchange program Estado de Minas, a Brazilian newspaper European Movement, an international lobbying association 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, 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), a digraph in Portuguese Em, the third-person singular oblique Spivak pronoun
Typography em (typography), a unit of measurement em dash, a dash that is one em wide em space or mutton, a space that is one em wide
Management Emergency management, a discipline that studies dealing with and avoiding risks Energy management, 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, a city in the United States El Monte, Chile, a city in Chile
Science Biology Extracellular matrix, the connective tissue supporting cells in multicellular organisms Membrane potential (Em), of a cell
Computing , emphasis HTML element End of medium, ISO C0 control code ^Y Empirical modelling em (typography), a unit of measurement in Web design eM Client E-Mail client A whole brain emulation, see also brain emulation, a hypothetical future life extension technology. Ems were coined by Robin Hanson.
Gardening and Agriculture Effective microorganisms, a series of commercial products advertised to improve soil and plant growth
Medicine Emergency medicine, a medical specialty dealing with acute illnesses and injuries that require immediate attention Erythema multiforme, a skin condition that usually follows an antecedent infection or drug exposure Erythromelalgia, a disorder that typically affects the skin of the feet and/or hands, causing redness, heat and pain Extensive metabolizer, a term used in pharmacogenomics to refer to individuals with normal metabolic activity
Physics Exametre or exameter (Em), an SI unit of length equal to 1018 metres Electromagnetic spectrum, the range of all possible frequencies of electromagnetic radiation Electromigration, the transport of conducting solid material caused by electric current through it Electromagnetism, one of the fundamental physical forces Electromechanics, combines electrical engineering and mechanical engineering
Other uses in science and technology Em (underground car) Nikon EM, an SLR camera made by the Nikon Corporation in the late 1970s Early Minoan, an archaeological period Electron microscope, a type of microscope that uses electrons to "illuminate" a specimen and create an enlarged image Electron multiplier, a vacuum-tube structure that multiplies incident charges by means of secondary emission Electronic monitoring, a form of surveillance used in criminal justice Atlantic Equatorial mode, a climate pattern of the Atlantic Ocean Expectation–maximization algorithm, an algorithm for finding maximum likelihood estimates of parameters in probabilistic models
People Em Beihold (born 1999), American singer-songwriter Em Bryant (born 1938), American professional basketball player Em Cooper, British filmmaker and animator Em Lindbeck (1934–2008), American professional baseball player Em Rossi (born 1998), American singer-songwriter Em Rusciano, Australian entertainer Em Prasad Sharma (born 1975), Indian politician Em Stone (born 1978), American comic book illustrator
Other uses Electrician's mate, an occupational rating in the U.S. Navy and U.S. Coast Guard David Em (born 1952), an American computer art pioneer EM gauge, a scale used in model railways EM TV, a television channel in Papua New Guinea Etymologicum Magnum, in the bibliography of the largest Byzantine lexicon Em (underground car), a Soviet rapid transit train car