1. A combination of sulphur with iron, copper, cobalt, or nickel, so-called because it strikes fire with steel.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• pyorities,
• protes,
• permites,
• pyrimds,
• pyrmides,
• parates,
• perices,
• pirtes,
• priter,
• priates,
• payrates,
• puries,
• pirite,
• pirites,
• parites,
• prits,
• porices,
• piretes,
• puritis,
• puritey

The adjective form of the word "pyrites" is "pyritic".

The plural of the "pyrites" can be the "pyrites".

The singular of the "pyrites" can be the "pyrites".

The singular of the "pyrites" can be the "pyrite".