in chemistry, a name given to almost all precipitates. Thus, magistry and precipitate are synonymous: but chemists chiefly use precipitates as a general term, and apply that of magistry to some particular precipitates only which are used in medicine and in the arts. Such are, the magisteries of bismuth, coal, crabs-eyes, sulphur, &c.

Magistry of Bismuth. See Chemistry, n° 766.