Radium-a
noun, Chemistry.
1.
a substance, formed by decay of radon, that gives rise to radium B.
Read Also:
- Radium-b
noun, Chemistry. 1. an isotope of lead, formed by decay of radium A, that gives rise to radium C, which is an isotope of bismuth, from which radium D, radium E, and radium F, or polonium 210, are derived.
- Radium-emanation
noun, Chemistry. 1. (formerly) .
- Radium-f
noun, Chemistry. 1. an isotope of polonium: polonium 210.
- Radium-sulfate
noun, Chemistry. 1. a white, crystalline, water-insoluble, poisonous, radioactive solid, RaSO 4 , used chiefly in radiotherapy.
- Radium-therapy
noun 1. treatment of disease by means of radium. noun 1. treatment of disease, esp cancer, by exposing affected tissues to radiation from radium radium therapy n. The use of radium in radiotherapy.