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The name of the first letter of the Greek alphabet (Α, α), followed by beta. In the Latin alphabet it is the predecessor to A.
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Latin alpha: the Latin letter Ɑ (minuscule: ɑ).
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(sciences) The name of the symbols Α and α used in science and mathematics, often interchangeable with the symbols when used as a prefix.
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(finance) The return of a given asset or portfolio adjusted for systematic risk.
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A person, especially a male, who is dominant, successful and attractive; (see alpha male).
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(informal, abbreviation) Short for alphabet.
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(software engineering) The first versions of a program, usually only available to the developer, and only tested by the developer.
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(aviation) Angle of attack.
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(computer graphics) The level of translucency of a color, as determined by the alpha channel.
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(computer graphics) Ellipsis of alpha layer.
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(statistics) The significance level of a statistical test; the alpha level.
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(fandom slang) In omegaverse fiction, a person of a dominant secondary sex driven by biology, magic, or other means to bond with an omega, with males of this type often having canine-like genitalia.