| 单词 | binary |
| 释义 | binary /buy"neuh ree, -ner ee/, adj., n., pl. binaries. adj. 1. consisting of, indicating, or involving two. 2. Math. a. of or pertaining to a system of numerical notation to the base 2, in which each place of a number, expressed as 0 or 1, corresponds to a power of 2. The decimal number 58 appears as 111010 in binary notation, since 58 = 1 × 25 + 1 × 24 + 1 × 23 + 0 × 22 + 1 × 21 + 0 × 20. b. of or pertaining to the digits or numbers used in binary notation. c. of or pertaining to a binary system. d. (of an operation) assigning a third quantity to two given quantities, as in the addition of two numbers. 3. Chem. noting a compound containing only two elements or groups, as sodium chloride, methyl bromide, or methyl hydroxide. 4. Metall. (of an alloy) having two principal constituents. n. 5. a whole composed of two. 6. Astron. See binary star. 7. Also called binary number. Math. a number expressed in the binary system of notation. [1350-1400; ME < LL binarius, equiv. to bin(i) (see BIN-) + -arius -ARY] |
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