单词 | selenium |
释义 | selenium n. Chem. a non-metallic element occurring naturally in various metallic sulphide ores and characterized by the variation of its electrical resistivity with intensity of illumination. Usage Symb.: Se. Phrases and idioms selenium cell a piece of this used as a photoelectric device. Derivatives selenate n. selenic adj. selenious adj. Etymology: mod.L f. Gk selene moon + -IUM |
随便看 |
英语词典包含43808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。