beta

n. கிரேக்க நெடுங்கணக்கின் இரண்டாவது ஏழுத்து, விண்மீன் குழுவின் இரண்டாவது விண்மீன்.

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Be"ta, n. [Gr. bh a.] Defn: The second letter of the Greek alphabet, B, b. See B, and cf. etymology of Alphabet. Beta (B, b) is used variously for classifying, as: (a) (Astron.) To designate some bright star, usually the second brightest, of a constellation, as, b Aurigæ. (b) (Chem.) To distinguish one of two or more isomers; also, to indicate the position of substituting atoms or groups in certain compounds; as, b-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.

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