alpha

Other Definitions
alpha (dict)

Alpha by itself may refer to:

The first letter of the Greek alphabet, Α α, which also has some cultural meanings; see alpha (letter).
The letter A in the NATO phonetic alphabet, which is spelled Alfa for the benefit of native Portuguese and Spanish speakers.
A male in police CB code. (Delta represents a female)
DEC Alpha, a microprocessor from DEC.
Alpha TV - a Greek terrestrial channel
Alpha TV Gujarati - a Gujarati language channel in India.
Alpha (computer) - a fictional computer in Mike Walker's radio play Alpha.
Alpha (Investment) - A coefficient measuring the risk-adjusted performance, considering the risk due to the specific security, rather than the overall market.
Cronbach's alpha - a statistical measure of reliability.
Fine-structure constant - usually denoted $\alpha \$ (Alpha)
Alpha is a name of the first cards set.

The International Space Station has sometimes been referred to as 'Alpha'. Alpha may also be used in:

An adjective to indicate the first or most significant occurrence of something., as in these examples:

alpha female or male - the individual in the community to whom the others defer. Humans and their nearest species-relatives, the chimpanzees, show deference to the alpha of the community by ritualized gestures such as bowing, allowing the alpha to walk first in a procession, or standing aside when the alpha challenges.
alpha geek - a slang term based on the above, referring to any person considered pre-eminent amongst geeks, such as Linus Torvalds.
alpha version or alpha release - the first release of a computer program or other product, likely to be very unstable but useful for demonstrating internally and to select customers.
alpha - Bayer designation of (typically) the brightest star in a constellation.
alpha channel - a transparency information layer to supplement the three RGB color layers to make the RGBA color space.
H-alpha, an emission line created by Hydrogen atoms.

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