n. One who is devoted to the search for fundamental truth; in a restricted sense, one who is versed in or studies the metaphysical and moral sciences; a metaphysician.n. One who conforms his life to the principles of philosophy, especially to those of the Stoical school; one who lives according to reason or the rules of practical wisdom.n. An alchemist: so called with reference to the search for the philosopher's stone.n. n. One who deals in any magic art.