| 单词 | americium |
| 释义 | americium (once / 984943 pages) n WORD FAMILY americium USAGE EXAMPLESThe team’s proposed name follows suit with other atomic elements like polonium named after Poland, francium after France, and americium after the United States. Time(Jun 09, 2016) Power would come from a tiny radioactive source like americium, the element in smoke detectors. New York Times(Apr 12, 2016) Nuclear Watch New Mexico contends soil samples taken from the storage compound known as Area G show detectable amounts of plutonium and americium. Washington Times(Mar 30, 2016) n a radioactive transuranic metallic element; discovered by bombarding uranium with helium atoms Syn|Hyper Am, atomic number 95 metal, metallic element any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc. |
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