Pyrotechnic

{ Pyr′o‐tech″nic (?), Pyr′o‐tech″nic‐al (?), } a. [Pyro- + technic, technical: cf. F. pyrotechnique. See Fire, Technical.] Of or pertaining to fireworks, or the art of forming them.

Pyrotechnical sponge. See under Sponge.