Mil. a rate of firing small arms that is intermediate between slow fire and quick fire.
Pronunciation: (rap'id-fīur'),[key] —adj. 1. characterized by, delivered, or occurring in rapid succession: rapid-fire questions; rapid-fire events. 2. Mil.discharging in rapid fire: rapid-fire rifles. 3. discharging, operating, etc., at a rate more rapid than normal: a rapid-fire staple gun.