francium

fran ci um |ˈfransēəm ˈfræn (t )siəm | ▶noun the chemical element of atomic number 87, a radioactive member of the alkali metal group. Francium occurs naturally as a decay product in uranium and thorium ores. (Symbol: Fr ) ORIGIN 1940s: from France (the discoverer's native country ) + -ium .

francium

francium |ˈfransɪəm | ▶noun [ mass noun ] the chemical element of atomic number 87, a radioactive member of the alkali metal group. Francium occurs naturally as a decay product in uranium and thorium ores. (Symbol: Fr ) ORIGIN 1940s: from France (the discoverer's native country ) + -ium .

Francium

Fran ci um Substantiv, Neutrum , das |Fr a ncium |zu französisch France = Frankreich (dem Heimatland seiner Entdeckerin ) < mittellateinisch Francia radioaktives, schnell zerfallendes Alkalimetall chemisches Element Fr

francium

fran ci um /frǽnsiəm /名詞 U 〘化 〙フランシウム 〘放射性元素; ｟略 ｠Fr 〙.