Meaning of BETA in English


/bay"teuh/ or, esp. Brit., /bee"-/ , n.

1. the second letter of the Greek alphabet (B).

2. the consonant sound represented by this letter.

3. ( cap. ) Astron. a star that is usually the second brightest of a constellation: The second brightest star in Taurus is Beta Tauri.

4. Chem.

a. one of the possible positions of an atom or group in a compound.

b. one of two or more isomeric compounds.

5. the second of any series, as in chemistry or physics.

6. Also called beta coefficient, beta line . Stock Exchange. an arbitrary measure of the volatility of a given stock using an index of the volatility of the market as a whole: A beta of 1.1 indicates a stock that is 10 percent more volatile than the market.

7. ( cap. ) Trademark. a brand of tape format for VCR tape, incompatible with other formats. Cf. VHS .

8. Chiefly Brit. a grade showing that a student is in the middle or second of three scholastic sections in a class. Cf. alpha (def. 7), gamma (def. 9).

[ bêta beth BETH ]

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .