Definition of pyrites noun from the Oxford Advanced Learner's Dictionary



BrE BrE//paɪˈraɪtiːz//
; NAmE NAmE//pəˈraɪtiːz//
jump to other results
a shiny yellow mineral that is made up of sulphur and a metal such as iron iron/copper pyrites Word Origin late Middle English (denoting a mineral used for kindling fire): via Latin from Greek puritēs ‘of fire’, from pur ‘fire’.