Definition of pyrrhotine in English:

pyrrhotine

Pronunciation /ˈpɪrətʌɪn/ /ˈpɪrətiːn/

noun

Mineralogy
  • Pyrrhotite.

Origin

Mid 19th century; earliest use found in James Nicol (1810–1879), geologist. From ancient Greek πυρρότης redness (from πυρρός reddish + -της, suffix forming nouns) + -ine, after German Pyrrotin.