Table of Contents
Antonyms
Synonyms
Etymology
1. francium
noun. a radioactive element of the alkali-metal group discovered as a disintegration product of actinium.
Antonyms
Synonyms
Etymology
- francium (English)
- francium (French)
- -ium (French)
noun. a radioactive element of the alkali-metal group discovered as a disintegration product of actinium.