i Register
In some senses, pyro is marked as slang, informal, archaic. Watch for register when choosing this word.
noun
A pyromaniac.
Pyrocellulose.
A pyrotechnician.
Pyrotechnics.
Pyrogallol, pyrogallic acid.
adj
Pyromaniac, pyromaniacal.
Pyrotechnic.
“I had told the guy a couple of weeks earlier that the pyro flames were getting too close,” he laughs.