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pierre de touche — meaning in English

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English meaning

  • touchstone noun A dark stone once used to test the purity of gold or silver by rubbing the metal on it and examining the streak left behind.

Senses

pierre de touche is used for these senses in English:

  • touchstone (figurative, by extension) A standard of comparison or evaluation.

touchstone — full definition

  1. noun A dark stone once used to test the purity of gold or silver by rubbing the metal on it and examining the streak left behind.
  2. noun A standard or test used to judge the quality or genuineness of something.
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