adj, noun, slang ·Moderate ·College level

Definitions

Noun

1. 1
   A pyromaniac. countable, slang
2. 2
   Pyrocellulose. uncountable
3. 3
   A pyrotechnician. countable, informal
4. 4
   Pyrotechnics. informal, uncountable
5. 5
   Pyrogallol, pyrogallic acid. archaic, especially, uncountable

Adjective

1. 1
   Pyromaniac, pyromaniacal. slang
2. 2
   Pyrotechnic. informal

   "“I had told the guy a couple of weeks earlier that the pyro flames were getting too close,” he laughs."

Example

More examples

"“I had told the guy a couple of weeks earlier that the pyro flames were getting too close,” he laughs."

Etymology

Shortening of a word starting with pyro-, ultimately from Ancient Greek πῦρ (pûr, “fire”).

Related phrases

pyrogallic acid

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.