Pyrotechnic \Pyr`o*tech"nic\, Pyrotechnical \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. [1913 Webster]

Pyrotechnical sponge. See under Sponge. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

pyrotechnic adj
1: of or relating to the craft of making fireworks; "pyrotechnic smokes" [syn: pyrotechnical]
2: suggestive of fireworks; "pyrotechnic keyboard virtuosity"; "a pyrotechnic wit"

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. [syn: firework]

Source: WordNet (r) 2.0
 

Pyrotechnic \Pyr`o*tech"nic\, Pyrotechnical \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.

Source: Webster's Revised Unabridged Dictionary (1913)