Crossword clue: of or pertaining to fireworks, or the art of forming them. pyrotechnical sponge. see under sponge.
1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).
Possible answers
a device with an explosive that burns at a low rate and with colored flames; can be used to illuminate areas or send sig