alpha

1. 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. (countable, uncountable)
2. Latin alpha: the Latin letter Ɑ (minuscule: ɑ). (countable, uncountable)
3. The name of the symbols Α and α used in science and mathematics, often interchangeable with the symbols when used as a prefix. (countable, uncountable) · I will attempt to make an alpha particle ("α-particle") with the Large Hadron Collider.
4. The return of a given asset or portfolio adjusted for systematic risk. (countable, uncountable)
5. A person, especially a male, who is dominant, successful and attractive; (see alpha male). (countable, uncountable)
6. The first versions of a program, usually only available to the developer, and only tested by the developer. (countable, uncountable)
7. An angle of attack. (countable, uncountable)
8. The level of translucency of a color, as determined by the alpha channel. (countable, uncountable)

Plural alphas