pyroleterEtymologyFrom pyro- + Ancient Greek ὀλετήρ (oletḗr, “destroyer”), from ὄλλυμι (óllumi).pyroleter means A fire-extinguishing chemical apparatus by which carbonic acid is generated and thrown on the fire. Lexicurio rates it Sui generis — a strength score of 86 out of 100.nounA fire-extinguishing chemical apparatus by which carbonic acid is generated and thrown on the fire.