| 单词 | uranium-235 |
| 释义 | uranium-235 in British English (jʊˈreɪnɪəm ˌtuːˌθriːˈfaɪv) noun a uranium radioisotope that is used in nuclear fission uranium 235 in American Englishnoun Chemistry the radioactive uranium isotope having a mass number of 235, comprising 0.715 percent of natural uranium. When bombarded with neutrons it undergoes fission with the release of energy Also called: U-235, U 235, actinouranium Word origin [1935–40]This word is first recorded in the period 1935–40. Other words that entered Englishat around the same time include: Arts and Crafts Movement, bingo, blitz, fluorocarbon, roadblock |
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