Meaning of BETA in English


I. ˈbā-tə, chiefly Brit ˈbē- noun

Etymology: Middle English betha, from Latin beta, from Greek bēta, of Semitic origin; akin to Hebrew bēth beth

Date: 14th century

1. : the 2d letter of the Greek alphabet — see alphabet table

2. : beta particle

3. : a measure of the risk potential of a stock or an investment portfolio expressed as a ratio of the stock's or portfolio's volatility to the volatility of the market as a whole

4. : a nearly complete prototype of a product (as software)

released in beta

the beta version

II. adjective

Date: 1862

: second in position in the structure of an organic molecule from a particular group or atom

beta substitution

— often used in combination; symbol β

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.