| 单词 | uranium 238 |
| 释义 | uranium 238noun Chemistry.the radioactive uranium isotope having a mass number 238, comprising 99.28 percent of natural uranium: used chiefly in nuclear reactors as a source of the fissionable isotope plutonium 239. Also called U-238, U 238. Origin of uranium 238First recorded in 1940–45 Words nearby uranium 238uranism, uranite, uranite group, uranium, uranium 235, uranium 238, uranium 239, uranium dating, uranium dioxide, uranium hexafluoride, uranium oxide Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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