Beta may refer to:

• Beta (letter) (β), the second letter of the Greek alphabet

In mathematics:

• Beta function in mathematics
• Beta distribution in statistics
• Beta coefficient in finance
• Standardized coefficient in statistics, also sometimes known as beta coefficient

In physics:

• Beta (velocity) in special relativity
• Beta (plasma physics), a plasma's ratio of thermal to magnetic pressure
• Beta-function in quantum field theory
• Beta particle in subatomic physics
• Thermodynamic beta in thermodynamics/statistical mechanics
• Compressibility or β, a measure of the relative volume change of a fluid or solid as a response to a pressure change

In life sciences:

• Beta (plant), a genus of flowering plants, the "beets"
• Beta (biology), a rank in a community of social animals
• Beta-endorphin
• Beta movement in visual psychology
• Beta carbon in organic chemistry
• Beta cell in anatomy that produces insulin

In technology:

• BETA programming language
• Beta (time signal)
• Beta (motorcycle manufacturer), an Italian off-road motorcycle manufacture
• Lancia Beta, a car
• Betamax or Betacam, videotape formats
• Beta software in the software release cycle
• Transistor "beta", a bipolar junction transistor

In media:

• Beta (film), 1992 Bollywood film directed by Indra Kumar
• Beta (Magic: The Gathering) a card game set
• B3ta, a British humour webcommunity
• Beta reader, a person who assists in the production of fiction
• Beta Recordings, a record label
• Beta, a caste in Aldous Huxley's Brave New World
• BETA, an organization in the 1986 TV series The Adventures of the Galaxy Rangers

In geography:

• Beta, Harghita, a village in the commune of Mugeni, Harghita County, Romania

In other uses:

• Beta (climbing), route guidance for rock climbers
• Hurricane Beta (2005)
• National Beta Club, a high school honor society
• Voiced bilabial fricative in the International Phonetic Alphabet
• Beta quadra, in Socionics

People with the given or family name Beta

• Beta Mechazawa, a character from Cromartie High School

See also

• ß, a German letter that resembles β
• Betta, a genus of fish, often misspelled Beta

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