Definition of pyrophore in English:

pyrophore

(also pyrophor)

noun

rare
  • Any substance capable of igniting spontaneously on contact with air or water; = pyrophorus. Now historical.

Origin

Late 18th century. From French pyrophore substance capable of igniting spontaneously on contact with air or water from post-classical Latin pyrophorus.

Pronunciation

pyrophore

/ˈpʌɪrəfɔː/