/puy'reuh tek"niks/ , n. ( used with a sing. or pl. v. )
1. the art of making fireworks.
2. the use of fireworks for display, military purposes, etc.
3. a display of fireworks.
4. a brilliant or sensational display, as of rhetoric or musicianship.
5. Mil. ammunition containing chemicals for producing smoke or light, as for signaling, illuminating, or screening.
Also, pyrotechny (for defs. 1, 2).
[ 1710-20; see PYROTECHNIC, -ICS ]