Definition of pyrolignite in English:

pyrolignite

noun

Chemistry
rare
  • A salt of pyroligneous acid; an impure or crude acetate, especially one used as a mordant in dyeing and staining.

Origin

Late 18th century. From pyrolign- + -ite, after French pyro-lignite.

Pronunciation

pyrolignite

/ˌpʌɪrəˈlɪɡnʌɪt/