• synonyms

philosophers' stone

or philosopher's stone

See more synonyms for philosophers' stone on Thesaurus.com
noun Alchemy.
  1. a substance sought by alchemists that would be capable of transmuting baser metals into gold or silver and of prolonging life.
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Origin of philosophers' stone

Middle English word dating back to 1350–1400
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018