pyrotechnic (Adjective) — Of or relating to the craft of making fireworks. ex. "pyrotechnic smokes"
pyrotechnic (Adjective) — Suggestive of fireworks. ex. "pyrotechnic keyboard virtuosity" ex. "a pyrotechnic wit"
pyrotechnic (Noun) — (usually plural) a device with an explosive that burns at a low rate and with coloured flames; can be used to illuminate areas or send signals etc..