Definition of metallism in English:

metallism

Pronunciation /ˈmɛtəlɪz(ə)m/ /ˈmɛt(ə)lɪz(ə)m/

noun

historical Economics
  • The theory that all currency should be in the form of metal coins. Also: the theory that any currency should consist of a commodity (usually some metal) so that the exchange value and purchasing power of the commodity (considered independently of its monetary role) determines that of the currency.

Origin

Late 19th century (in an earlier sense). From metal + -ism, after metallist.