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alpha
[ al-fuh ]
noun
- the first letter of the Greek alphabet (A, α).
- the vowel sound represented by the first letter of the Greek alphabet.
- the first; the beginning.
- Alpha, Astronomy. used to designate the brightest star in a constellation:
Alpha Arietis is the brightest star in Aries.
- Chemistry. one of two or more isomeric compounds.
- the first in a series of related items: frequently used in chemistry and physics.
- Computers. an early phase of hardware or software development, in which the product is tested by its developers or manufacturers: alpha test ( def ).
Some modules are complete and ready for consumers while others are still in alpha.
- Chiefly British. a mark or grade corresponding to an A. Compare beta ( def 9 ), gamma ( def 9 ).
adjective
- (of an animal) having the highest rank in a dominance hierarchy:
the alpha female of an elephant pack.
- being the most dominant, powerful, or assertive person in a particular group.
- Slang: Sometimes Disparaging. being or relating to a man who is perceived to be assertive, successful, and sexually dominant.
Put the files in alpha order.
- Computers. being, relating to, or undergoing the early phase of product development in which a product is tested by its developers or manufacturers: alpha test ( def ).
The initial release is really an alpha version only available to developers.
- Chemistry. relating to or linked to the carbon atom closest to a particular group in an organic molecule.
alpha
1/ ˈælfə /
noun
- the first letter in the Greek alphabet (Α, α), a vowel transliterated as a
- the highest grade or mark, as in an examination
- modifier
- involving or relating to helium-4 nuclei
an alpha particle
- relating to one of two or more allotropes or crystal structures of a solid
alpha iron
- relating to one of two or more isomeric forms of a chemical compound, esp one in which a group is attached to the carbon atom to which the principal group is attached
- modifier denoting the dominant person or animal in a group
the alpha male
Alpha
2/ ˈælfə /
noun
- foll by the genitive case of a specified constellation usually the brightest star in a constellation
Alpha Centauri
- communications a code word for the letter a
Word History and Origins
Word History and Origins
Origin of alpha1
Example Sentences
Alpha Team was killed, Faal told the FBI, while the Bravo members who were not gunned down fled.
The conspirators were split into two teams, “Alpha” and “Bravo.”
And when that happens, one “alpha dog” will run the show, usually the oldest, most experienced performer, who “knows more tricks.”
Former RSD instructor Nathan Kole says he saw firsthand how this “alpha male” marketing can damage students.
Lohse rushes Sigma Alpha Epsilon, gets a bid, endures pledge term, and then submits to the dehumanizing rigors of Hell Night.
Beta is not formed from alpha; one is first, the other is second, and no one knows why.
The ring shown in Fig. 117 bears the sacred monogram accompanied by the significant Alpha and Omega.
The proper annual motion of the sun Alpha Centauri exceeds 188 millions of leagues per year.
The star Alpha Cygni comes to us in a direct line at a speed of 500 millions of leagues per year.
And I remember being jealous because she was chosen by the Kappa Alpha as a candidate.
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