Beta

Be"ta

(?), n. [Gr. bh^ta.] The second letter of the Greek alphabet, B, . See B, and cf. etymology of Alphabet. Beta (B, ) is used variously for classifying, as: (a) (Astron.) To designate some bright star, usually the second brightest, of a constellation, as, Aurig. (b) (Chem.) To distinguish one of two or more isomers; also, to indicate the position of substituting atoms or groups in certain compounds; as, -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.
[Webster 1913 Suppl.]

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Be"ta*cism

(?),

Be`ta*cis"mus

(?) }, n. Excessive or extended use of the b sound in speech, due to conversion of other sounds into it, as through inability to distinguish them from b, or because of difficulty in pronouncing them.
[Webster 1913 Suppl.]

 

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Sun 16th December 2018