Editing Alpha (disambiguation) (section)

==Science, technology and mathematics==

=== Biology ===
* [[Alpha (ethology)]] (also "alpha male" and "alpha female"), the highest ranking individuals in a community of social animals
* [[Alpha helix|Alpha helixes]], which are a type of secondary protein structures
* α receptors, a type of [[Adrenergic receptor]]
* [[SARS-CoV-2 Alpha variant]], one of the variants of SARS-CoV-2, the virus that causes COVID-19
* A class of [[Immunoglobulin heavy chain|Immunoglobulin heavy chains]] that defines [[Immunoglobulin A|IgA]] type [[Antibody|antibodies]]
* ''[[Trinchesia alpha]]'', a species of sea slug
*''[[Ponera alpha]]'', a species of ant

===Computing===
* [[Alpha (programming language)]], an early database language
* [[Alpha compositing]], an image processing technique
* Alpha phase of a [[software release life cycle]]
* [[AlphaServer]], DEC now HP machine successor to the VAX 
* [[AlphaStation]], DEC now HP workstation successor to the VAX
* [[DEC Alpha]], an instruction set architecture developed by Digital Equipment Corporation (DEC)
* [[Wolfram Alpha]], a computational knowledge engine

===Mathematics and statistics===
* [[Alpha (finance)]], a measurement of active return on an investment
* [[Cronbach's alpha]], a statistical measure of reliability
* [[Angular eccentricity]] (conventional symbol "α")
* Navigational [[azimuth]] (symbol "α")
* One of the [[Feigenbaum constants]] describing a bifurcation diagram, in mathematics (symbol "α")
* The probability of a [[Type I and type II errors|type I error]] in statistics (symbol "α")
* The [[Statistical significance|significance level]] of a statistical test (symbol "α") 
* The [[Ackermann function#Inverse|inverse Ackermann function]]
* α, sometimes used as a placeholder for [[ordinal number]]s

===Science===
* [[Antiproton Decelerator#ALPHA|ALPHA]], a particle physics experiment at CERN
* [[ALPHA Collaboration]], (Antihydrogen Laser PHysics Apparatus), a team of scientists
* [[Alpha particle]], form of particle radiation
* [[Alpha wave]]s, recorded by electroencephalography
* [[Angle of attack]] in aerodynamics (symbol "α")
* [[Angular acceleration]] in physics (symbol "α")
* [[Coefficient of thermal expansion]] in thermodynamics (symbol "α")
* [[Fine-structure constant]] in physics (symbol "α")
* [[Thermal diffusivity]] in thermodynamics (symbol "α")
* Common-base current gain of a [[transistor]] in electronics (symbol "α")
* α, the isotope fractionation factor between two substances in [[geochemistry]]
* Alpha, the brightest star in a constellation according to the [[Bayer designation]]

===Technology===
* [[Alpha (navigation)]], a Russian radio navigation system
* [[Minolta Alpha]], the Japanese name for a series of SLR cameras known as Maxxum or Dynax elsewhere
* [[Sony α]] or Sony Alpha, a digital SLR series by Sony, direct successor to the Minolta Alpha series
* [[Samsung Galaxy Alpha]], 2014 Android smartphone by Samsung