francium
What is the opposite of francium? Here is what we hold, with its meaning and related words.
Noun — A highly radioactive alkali metal, symbol Fr, with atomic number 87, that is not found in nature.
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How to use francium
The word patterns that sound natural to a native speaker.
It is a technical term used in chemistry and physics.
Etymology
The word came into English from French, where it was formed from France plus the ending -ium. It was named after the native country of Marguerite Perey.
Full origin of francium →