radium
ra-di-um
noun
A rare, highly radioactive metallic element, formerly used in medicine and luminous paints.
"Marie Curie discovered radium and polonium."
Thesaurus
Synonyms: atomic number 88, Ra
ra-di-um
A rare, highly radioactive metallic element, formerly used in medicine and luminous paints.
"Marie Curie discovered radium and polonium."
Synonyms: atomic number 88, Ra