Definitions for "Philosopher's Stone"
In alchemy, any stone, substance or powder that will turn base metals into gold.
An Alchemical term. "The Prima Materia. The Powder of Projection. The First Substance from which all other metals derived. Supposedly the Philosopher's Stone could be used to transmute base metals gold or silver, cure disease, and prolong life. It is associated with the Elixir of Life. The Philosopher's Stone is often used as a symbol of illumination." - from The Magician's Companion
The legendary substance of alchemists having properties that could transform lead into gold.