Definition of "alpha" in Anglais

noun

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.

2. Latin alpha: the Latin letter Ɑ (minuscule: ɑ).

3. (sciences) The name of the symbols Α and α used in science and mathematics, often interchangeable with the symbols when used as a prefix.

   • I will attempt to make an alpha particle ("α-particle") with the Large Hadron Collider.

4. (finance) The return of a given asset or portfolio adjusted for systematic risk.

5. A person, especially a male, who is dominant, successful and attractive; (see alpha male).

6. (informal) Clipping of alphabet.

7. (software engineering) The first versions of a program, usually only available to the developer, and only tested by the developer.

8. (aviation) An angle of attack.

9. (computer graphics) The level of translucency of a color, as determined by the alpha channel.

10. (computer graphics) Ellipsis of alpha layer.

11. (statistics) The significance level of a statistical test; the alpha level.

12. (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.

    • Sherlock realizes that John, despite being an alpha, sees and loves Sherlock for who he is, "a brilliant, mad, nutter of a man," instead of only wanting him for his reproductive functions, his ability to become pregnant.

13. Alternative letter-case form of Alpha (“member of Generation Alpha”).

adjective

1. Designates the first in an order of precedence.

   • I am the alpha male.

2. (of person, object or action) Exhibiting characteristics of the alpha male/female archetype.

3. (astronomy) Designates some bright star, usually the brightest star, of a constellation.

   • When interstellar travel becomes feasible, I plan to visit Alpha Centauri.

4. Clipping of alphabetical.

   • Sort the list in alpha order.