francium
fran·cium
noun
1.
a radioactive element of the alkali-metal group discovered as a disintegration product of actinium
Origin
From French francium, from France + -ium (after the native country of Marguerite Perey).
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.