magistery

noun
mag·​is·​tery
plural -es

Definition of magistery

1 : a principle of nature having transmuting or curative powers : philosophers' stone he that hath water turned to ashes, hath the Magistery, and the true Philosophers' stone— James Howell
2 obsolete : mastership, authority

3 obsolete

b : any of various white precipitates from metallic solutions a white precipitate of bismuth subnitrate was formerly known as magistery of bismuth

History and Etymology for magistery

Medieval Latin magisterium, from Latin, office of a supervisor, office of tutor or guardian, instruction, from magister master

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