One of the mysteries of the English language finally explained.
1Alchemy. A master principle of nature, free of impurities; a potent transmuting or curative quality or agency; (concrete) a substance, such as the philosopher's stone, capable of transmuting or changing the nature of other substances. Also figurative. Now chiefly historical.
2Chemistry. The residuum obtained by precipitation from an acid solution; a precipitate; a resinous extract. Now historical.
Late 15th century (in an earlier sense). From classical Latin magisterium the office of a master, in post-classical Latin also denoting the philosopher's stone from magister + -ium.
In this article we explore how to impress employers with a spot-on CV.