Beta (disambiguation)

Beta (B, β) is the second letter of the Greek alphabet.

Beta or BETA may also refer to:

Films

 * Beta (film), a 1992 Bollywood film directed by Indra Kumar
 * Beta Test (film), a 2016 American science fiction film directed by Nicholas Gyeney
 * The Beta Test, a 2021 American dark comedy film directed by Jim Cummings

Fictional entities

 * BETA (Muv-Luv) (Beings of the Extra Terrestrial origin which is Adversary of human race), an alien race from the video game series Muv-Luv
 * β, a classification of strength in the Earthbound, or Mother, series of Nintendo role-playing games
 * Beta, a wolf character in the animated film Storks
 * BETA, an organization in the 1986 TV series The Adventures of the Galaxy Rangers
 * Beta (The Walking Dead), an antagonist in the Walking Dead comic series
 * Beta Hirogen, the second in command of a Hirogen hunting party, as seen in Star Trek: Voyager
 * Beta Quadrant, one of four quadrants in the galaxy in Star Trek

Other uses in arts, entertainment, and media

 * Beta (Magic: The Gathering), the second (revised) part of the first set of the card game Magic: The Gathering
 * Beta chord
 * Beta News Agency, Serbian independent news agency
 * Beta Recordings, a record label headed by John B
 * Lifetime (TV network), pre-launch branded as BETA
 * beta, a combat robot competing in BattleBots
 * Beta, a mountain biking magazine and website launched by Outside (company) in 2021

Mathematics, finance, and statistics

 * Beta (finance), the β coefficient in the capital asset pricing model
 * β, the probability of a Type II error in statistics; See Type I and type II errors
 * β-reduction, a reduction rule for lambda calculus
 * Beta distribution, in statistics, a family of continuous probability distributions
 * Beta function, a special function also known as the Euler integral of the first kind
 * Beta invariant, of a matroid
 * Dirichlet beta function
 * Eratosthenes, Greek mathematician nicknamed Beta (Βῆτα)
 * Standardized coefficient or beta coefficient, in statistics, the estimate of an analysis performed on variables that have been standardized so that they have variances of 1

Organisations

 * Beta (motorcycle manufacturer), an Italian off-road motorcycles manufacturer
 * BETA Cargo, a defunct Brazilian airline
 * Beta Technologies, a US electric aircraft manufacturer
 * British Equestrian Trade Association, a membership organisation in the United Kingdom
 * Broadcasting and Entertainment Trades Alliance, sometimes known by the acronym "BETA"
 * National Beta Club, a high school honor society
 * South Texas Business Education & Technology Academy (BETA)

Places

 * Beta, Ohio, a ghost town in the United States
 * Beța, a village in Lopadea Nouă Commune, Alba County, Romania
 * Beta, a village in Mugeni Commune, Harghita County, Romania
 * Beta Israel, a name given to Jewish communities that occupied territories of the Aksumite and Ethiopian (Habesh or Abyssinia) empires
 * Beta (Olt), a tributary of the Olt in Harghita County, Romania
 * Beta, a tributary of the Târnava Mare in Harghita County, Romania

Psychology

 * Beta movement, a perceptual illusion whereby two or more still images are combined by the brain into surmised motion
 * Beta quadra, one of the four quadras in socionics
 * Type-beta, a personality type now commonly referred to as type-B; See Type A and Type B personality theory

Biology and medicine

 * Beta (plant), a genus of flowering plants, mostly referred to as beets
 * Beta (grape), a variety of North American grape
 * β1 and β2, or beta-1 and beta-2, adrenergic receptors
 * Beta, a rank in a community of social animals; See Alpha
 * Beta carbon, in organic chemistry—the second carbon atom in a chain when counting from a functional group; See Alpha and beta carbon
 * Beta cell, a type of cell in the pancreas, which produces insulin
 * Beta sheet, a secondary protein structure
 * Beta-endorphin, a kind of neurotransmitter
 * SARS-CoV-2 Beta variant, one of the variants of SARS-CoV-2, the virus that causes COVID-19

Physics

 * Beta (plasma physics), the ratio of thermal to magnetic pressure in plasma
 * Beta (velocity), the speed of an object relative to the speed of light in special relativity.
 * β, a symbol for compressibility, a measure of the relative volume change of a fluid or solid as a response to a pressure change
 * Beta function (physics), also β(g)—a function in quantum field theory
 * Beta particle, a name used to refer to high-energy electrons (β&minus;) or positrons (β+) emitted by certain types of radioactive nuclei
 * Phase Constant (β), in electromagnetics and electrical engineering, used in the theory of plane waves; See Propagation constant
 * Precursor yield fraction, leading to delayed neutrons in nuclear reactors
 * Thermodynamic beta, in thermodynamics and statistical mechanics—a numerical quantity related to the thermodynamic temperature of a system

Other uses in science

 * Hurricane Beta, a 2005 hurricane
 * Tropical Storm Beta (2020), a 2020 tropical storm

Sports

 * Beta (climbing), climbing jargon that designates information about a climb
 * Beta Ethniki, the second tier division of the Greek football (soccer) league

Technology

 * Beta (time signal), a time signal service broadcast in the very low frequency range in Russia
 * Beta, the common-emitter current gain of a bipolar junction transistor
 * Betacam, a family of half-inch professional videotape products developed by Sony
 * Betamax, home videocassette tape recording format developed by Sony
 * BETA (programming language), a programming language
 * Beta release, or betaware, a phase in software development before an official release
 * Perpetual beta, software or a system that never leaves the beta development stage

Other uses

 * Advance Bi Beta, a Swiss paraglider design
 * Beta male (slang), a pejorative term for a man considered as weak and emasculated
 * Lancia Beta, a car produced by Lancia
 * Beta reader, a person who critiques a written work prior to public release
 * Voiced bilabial fricative (β), the voiced bilabial fricative symbol of the International Phonetic Alphabet