beta: signification et définitions

The second letter of the Greek alphabet. See Table at alphabet.

The second item in a series or system of classification.

A mathematical measure of the sensitivity of rates of return on a portfolio or a given stock compared with rates of return on the market as a whole. A beta of 1.0 indicates that an asset closely follows the market; a beta greater than 1.0 indicates greater volatility than the market.

Astronomy The second brightest star in a constellation.

Computers The version of a software or hardware product used in a beta test.

Being the second-ranked individual of one's sex. Used of social animals: the beta male of the chimpanzee colony.

Chemistry Being in the second position relative to a designated carbon atom in an organic molecule at which an atom or a group may be substituted. Referring to the second of a group of isomers, or molecules of similar origin or properties, determined arbitrarily by those who discover or classify them. Used in combination: beta-estradiol

Computers Of or relating to a beta test or the software or hardware involved in a beta test.