radium
2 synonyms for radium, grouped by meaning and by how common each one is.
Noun — A rare, highly radioactive metallic chemical element (symbol Ra).
Synonyms
Less common
Still standard English, but they carry more weight.
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
How to use radium
The word patterns that sound natural to a native speaker.
Etymology
Borrowed from French radium, built from "radio(actif)" ("radioactive") plus the element-naming suffix "-ium".
Full origin of radium →