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• philosophers' stone
  philosophers' stone

  noun

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

  noun

  a stone or substance thought by alchemists to be capable of transmuting base metals into gold

philosophers' stone

American  

Or philosopher's stone

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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philosopher's stone British  

noun

1. a stone or substance thought by alchemists to be capable of transmuting base metals into gold

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philosopher's stone Cultural  

1. The stone or material that practitioners of alchemy believed capable of changing other metals into gold.

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Figuratively, the “philosopher's stone” is a substance thought to be capable of regenerating man spiritually.

Etymology

Origin of philosophers' stone

Middle English word dating back to 1350–1400

Example Sentences

The philosophers stone were better in my opinion.

From A Collection of Old English Plays, Volume 2 by Bullen, A. H. (Arthur Henry)