| 单词 | atom |
| 释义 | atom n. 1. a the smallest particle of a chemical element that can take part in a chemical reaction. b this particle as a source of nuclear energy. 2. (usu. with neg.) the least portion of a thing or quality (not an atom of pity). Phrases and idioms atom bomb a bomb involving the release of energy by nuclear fission = fission bomb. atom-smasher colloq. = ACCELERATOR 2. Etymology: ME f. OF atome f. L atomus f. Gk atomos indivisible |
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