| 单词 | actinon |
| 释义 | actinon[ ak-tuh-non ] / ˈæk təˌnɒn / noun Chemistry.a chemically inert, gaseous, short-lived isotope of radon that is a member of the actinium series. Symbol: An; atomic number: 86; atomic weight: 219. Also called actinium emanation. Origin of actinonFrom New Latin, dating back to 1925–30; see origin at actinium, -on2 Words nearby actinonActinomycetales, actinomycete, actinomycin, actinomycoma, actinomycosis, actinon, actinopod, actinopterygian, actinotherapy, actinouranium, actinozoan Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for actinonactinon / (ˈæktɪˌnɒn) / nouna radioisotope of radon that is a decay product of radium. Symbol: An or 219 Rn; atomic no: 86; half-life: 3.92s another name for actinide Word Origin for actinonC20: New Latin, from actinium + -on Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
| 随便看 |
英语词典包含192737条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。