"pyrotechnic" in the noun sense
1. firework, pyrotechnic
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.
"pyrotechnic" in the adjective sense
1. pyrotechnic, pyrotechnical
of or relating to the craft of making fireworks
"pyrotechnic smokes"
2. pyrotechnic
suggestive of fireworks
"pyrotechnic keyboard virtuosity"
"a pyrotechnic wit"
Source: WordNet® (An amazing lexical database of English)
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