Part of speech: noun

A metallic chemical element discovered in 1898 by M. and Mme. Curie of Paris. It is found in pitchblende and is capable of maintaining itself at a higher temperature than the surrounding atmosphere and of giving forth powerful invisible radiations.

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Usage examples "radium":

  1. They probably used radium to cure diseases. - "There was a King in Egypt", Norma Lorimer.
  2. " Just a common, ordinary pin," he said, " no radium about that." - "The Diamond Pin", Carolyn Wells.
  3. Scraps turned around and found a row of girls seated in radium chairs ranged along one wall of the room. - "The Patchwork Girl of Oz", L. Frank Baum.