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radium

  • noun
  • rad·i·um
  • rād'ēəm

The chemical element (symbol Ra) with an atomic number of 88. It is a soft, shiny and silvery radioactive alkaline earth metal.

Other meanings

  1. A type of cloth woven from silk or synthetic yarn, often with a shiny appearance.

Related words

  • radiferous
  • radiobe
  • radiumization
  • radiumlike
  • radiumtherapy
  • eka-radium
  • nonradium
  • radate
  • radium A
  • radium B
  • radium beam
  • radium bomb

Word history

From French "radium".

Where this comes from

This definition is adapted from “radium” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.