py‧ri‧tes /paɪˈraɪtiːz $ pə-/
noun [uncountable][
Date: 1500-1600;
Language: Latin;
Origin: 'flint', from Greek, 'of or in fire', from pyr; ⇒ pyre]
a mix of
sulphur with a type of metal, usually iron, or iron and
copper ⇒
fool’s gold:
iron pyrites [TahlilGaran] Dictionary of Contemporary English ▲