pyrophorus
n. காற்றுப்பட்டால் தீப்பிடித்துக்கொள்ளும் பொருள்.
Py*roph"o*rus, n. Etym: [NL. See Pyrophorous.] (Old Chem.) Defn: Any one of several substances or mixtures which phosphoresce or ignite spontaneously on exposure to air, as a heated mixture of alum, potash, and charcoal, or a mixture of charcoal and finely divided lead.