What does the word crucible mean?

Usage examples for crucible

  1. The gold, silver, and copper must be fused in a crucible before the zinc is added, or else you cannot keep them in the vessel while heating. – Young's Demonstrative Translation of Scientific Secrets by Daniel Young
  2. At last there came an experiment which failed entirely; no gold was produced in the crucible. – A Prince of Good Fellows by Robert Barr
  3. It is the crucible in which the gold and dross of many generations of his ancestors are melted down and remixed in the man, who is, indeed, " a part of all" from whom he claims descent. – Memoir and Letters of Francis W. Newman by Giberne Sieveking