| 单词 | alpha |
| 释义 | alpha /al"feuh/, n. 1. the first letter of the Greek alphabet (A). 2. the vowel sound represented by this letter. 3. the first; beginning. 4. (cap.) Astron. used to designate the brightest star in a constellation. 5. Chem. one of two or more isomeric compounds. 6. the first in a series of related items: frequently used in chemistry and physics. 7. Chiefly Brit. a mark or grade corresponding to an A. Cf. beta (def. 8), gamma (def. 9). adj. 8. - a. (esp. of animals) having the highest rank of its sex in a dominance hierarchy: the alpha female. b. being the most prominent, talented, or aggressive person in a group: the alpha male of investment bankers. 9. Chem. pertaining or linked to the carbon atom closest to a particular group in an organic molecule. [ < L < Gk álpha < Sem; cf. ALEPH] |
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