magistery \mag"istery\, n. l. magisterium the office of a
   chief, president, director, tutor. see magistrate.
   1. mastery; powerful medical influence; renowned efficacy; a
      sovereign remedy. obs. --holland.
      1913 webster

   2. a magisterial injunction. r. --brougham.
      1913 webster

   3. chem. a precipitate; a fine substance deposited by
      precipitation; -- applied in old chemistry to certain
      white precipitates from metallic solutions; as, magistery
      of bismuth. --ure.
      1913 webster
see also:
magistrate