Hello, you have come here looking for the meaning of the word francium. In DICTIOUS you will not only get to know all the dictionary meanings for the word francium, but we will also tell you about its etymology, its characteristics and you will know how to say francium in singular and plural. Everything you need to know about the word francium you have here. The definition of the word francium will help you to be more precise and correct when speaking or writing your texts. Knowing the definition offrancium, as well as those of other words, enriches your vocabulary and provides you with more and better linguistic resources.
2003, Bill Bryson, A Short History of Nearly Everything, BCA, page 221:
The most elusive element of all, however, appears to be francium, which is so rare that it is thought that our entire planet may contain, at any given moment, fewer than twenty francium atoms.
“francium”, in Slovníkový portál Jazykovedného ústavu Ľ. Štúra SAV [Dictionary portal of the Ľ. Štúr Institute of Linguistics, Slovak Academy of Science] (in Slovak), https://slovnik.juls.savba.sk, 2003–2024