I. | ̷ ̷(ˌ) ̷ ̷|- adjective
Etymology: anti- (I) + aircraft
: designed for or concerned with defense against air attack
antiaircraft battery
antiaircraft shell
antiaircraft training
II. noun
( -s )
1. : an antiaircraft weapon or weapons
2. : the organizations that serve antiaircraft weapons, lights, and pointing devices
3. : the flight and burst of antiaircraft shells