francium

UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈfrænsɪəm/US:USA pronunciation: respellingUSA pronunciation: respelling(fran′sē əm)


WordReference Random House Unabridged Dictionary of American English © 2025
fran•ci•um  (fran′sē əm),USA pronunciation n. [Chem.]
  1. Chemistrya radioactive element of the alkali metal group. Symbol: Fr;
    at. no.: 87.
  • 1945–50; after France where first identified; see -ium

Collins Concise English Dictionary © HarperCollins Publishers::
francium / ˈfrænsɪəm/
  1. an unstable radioactive element of the alkali-metal group, occurring in minute amounts in uranium ores. Symbol: Fr; atomic no: 87; half-life of most stable isotope, 223Fr: 22 minutes; valency: 1; melting pt: 27°C; boiling pt: 677°C
Etymology: 20th Century: from New Latin, from France + -ium; so-called because first found in France
'francium' also found in these entries (note: many are not synonyms or translations):
FR - Fr - alkali metal - virginium

Forum discussions with the word(s) "francium" in the title:


Look up "francium" at Merriam-Webster
Look up "francium" at dictionary.com
  • Go to Preferences page and choose from different actions for taps or mouse clicks.

In other languages: Spanish | French | Italian | Portuguese | Romanian | German | Dutch | Swedish | Russian | Polish | Czech | Greek | Turkish | Chinese | Japanese | Korean | Arabic

Advertisements
Advertisements
Report an inappropriate ad.
WordReference.com
WORD OF THE DAY
GET THE DAILY EMAIL!

Become a WordReference Supporter to view the site ad-free.