Philosopher's stone

noun

Definitions

Noun
  1. 1
    A supposed substance able to turn base metals, such as lead or mercury, into gold or silver, also sometimes claimed to cure any illness (as panacea) or confer immortality (as elixir of life), among other functions.

    "[…] I entered with the greatest diligence into the search of the philosopher's stone and the elixir of life."

  2. 2
    Alternative letter-case form of philosopher's stone. alt-of
  3. 3
    hypothetical substance that the alchemists believed to be capable of changing base metals into gold wordnet
  4. 4
    A piece of such a substance.

Etymology

A misconstruction of philosophers' stone, from Middle English philosophres ston, a calque of Latin lapis philosophōrum.

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