Containing or treated with radium.

simple past tense and past participle of radium

plural of radium

Third-person singular simple present indicative form of radium

(chemistry) The strong base Ra(OH)₂ obtained when radium reacts with water; it has no commercial use

unbinilium

The dial of a watch or clock on which the hours have been marked with a radium compound to make them luminous

A disease, with necrosis of the jaw and bleeding of the gums, caused by the ingestion of radium and its subsequent absorption into the bones.

plural of radium dial

(US, historical) A female factory worker who contracted radiation poisoning from luminous paint (containing radium) used in watch dials in the early 20th century.