francium

n. 钫 [化] 钫

发音

UK /ˈfɹansɪəm/
其它
UK /ˈfɹɑːnsɪəm/
US /ˈfɹænsi.əm/

词形变化

franciums 复数 franciums

释义与例句

n.
  1. 1.

    The chemical element (symbol Fr) with an atomic number of 87. It is an intensely radioactive alkali metal that is not found in nature.

    钫

    不可数
  2. 2.

    A single atom of this element.

    可数 不可数

词汇关系

名词

同义词 1

fr

上位词 1

metal

词源

From French francium, from France + -ium (after the native country of Marguerite Perey).

来源：wiktionary