adj.
Pronunciation: ˌ p ī -r ə - ' fo ̇ r-ik, - ' fär-
Function: adjective
Etymology: New Latin pyrophorus, from Greek pyrophoros fire-bearing, from pyr- + -phoros carrying ― more at -PHORE
Date: 1836
1 : igniting spontaneously
2 : emitting sparks when scratched or struck especially with steel