Definition: (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.
Similar words: low explosive
Definition: an explosive with a low rate of combustion
Definition: suggestive of fireworks
Usage: pyrotechnic keyboard virtuosity; a pyrotechnic wit
Similar words: extraordinary
Definition: beyond what is ordinary or usual; highly unusual or exceptional or remarkable
Usage: extraordinary authority; an extraordinary achievement; her extraordinary beauty; enjoyed extraordinary popularity; an extraordinary capacity for work; an extraordinary session of the legislature