philosophers' stone

or philosopher's stone

noun Alchemy.

a substance sought by alchemists that would be capable of transmuting baser metals into gold or silver and of prolonging life.

Nearby words

  1. philosopher,
  2. philosopher king,
  3. philosopher kings,
  4. philosopher's stone,
  5. philosopher-king,
  6. philosophes,
  7. philosophic,
  8. philosophical,
  9. philosophical analysis,
  10. philosophical anthropology

Origin of philosophers' stone

Middle English word dating back to 1350–1400 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019