or philosopher's stone
a substance sought by alchemists that would be capable of transmuting baser metals into gold or silver and of prolonging life.
Origin of philosophers' stone
Middle English word dating back to 1350–1400
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for philosopher's stone
a stone or substance thought by alchemists to be capable of transmuting base metals into gold
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Culture definitions for philosopher's stone
The stone or material that practitioners of alchemy believed capable of changing other metals into gold.
Figuratively, the “philosopher's stone” is a substance thought to be capable of regenerating man spiritually.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.