philosopher's stone

noun

: 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

Example Sentences

Recent Examples on the Web

Fantastical adventures to secure the coveted philosopher's stone and restore their own bodies then ensue. —Nick Romano, EW.com, 18 Sep. 2020

Yes, alchemists have tried to create the philosopher's stone. —Washington Post, 18 Feb. 2018

Word History

First Known Use

14th century, in the meaning defined above

Kids Definition

philosopher's stone

noun

1

: an imaginary stone, substance, or mixture believed by alchemists to have the power to change other metals into gold

2

: an elusive or imaginary key to success