Note: BetaB, β) is used variously for classifying, as: [Astron] To designate some bright star, usually the second brightest, of a constellation, as, β Aurigæ. [Chem] To distinguish one of two or more isomers; also, to indicate the position of substituting atoms or groups in certain compounds; as, β-naphthol. With acids, it commonly indicates that the substituent is in union with the carbon atom next to that to which the carboxyl group is attached.
Etymology: Gr. bh^ta