pyrites

n [U] mineral that is a sulphide of iron (iron pyrites) or copper and iron (copper pyrites) 硫化矿类（黄铁矿或黄铜矿）.

puzzle, puzzled, puzzlement, puzzler, puzzling, PVC, Pvt, PW, PX, pygmy (also pigmy), pyjama (US pajama), pyjamas, pyjamas (also esp US pajamas), pylon, pyorrhoea (also esp US pyorrhea), pyramid, pyramid selling, pyramidal, pyre, Pyrex, pyromania, pyromaniac, pyrotechnic, pyrotechnics, Pyrrhic victory, python, Q, Q, q, QB, QC, QE2, QED, qr, qt, qto, qty, qua, quack, quack-quack, quackery,