† philosophers' wheeln.Obsolete a series of alchemical processes by which one element was supposed to be transmuted into another.
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1612 B. JonsonAlchemistii. iii. sig. D4 I' haue another worke;..That, three dayes since, past the Philosophers wheele, In the lent heate of Athanor; and 's become Sulphur o' nature. View more context for this quotation