Meaning

noun (usually plural) a device with an explosive that burns at a low rate and with colored flames; can be used to illuminate areas or send signals etc.

adjective of or relating to the craft of making fireworks

adjective suggestive of fireworks

originFrom Latin pyrotechnica, from Ancient Greek πῦρ (pûr, “fire”) + τεχνικός (tekhnikós, “skillful, workmanlike”). Analyzable as pyro- + technic.

Etymology from Wiktionary, CC BY-SA 3.0