Definition of philosopher's stone
: an imaginary stone, substance, or chemical preparation believed to have the power of transmuting baser metals into gold and sought by alchemists; broadly : an elusive or imaginary key to success —called also philosophers' stone
First Known Use of philosopher's stone
PHILOSOPHER'S STONE Defined for English Language Learners
Definition of philosopher's stone for English Language Learners
: an imaginary substance that people in the past believed had the power to change other metals into gold
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