- antiaircraft - designed for defense from a surface position against air attack
Antonym: offensive (indirect, via defensive)
- antiaircraft, antiaircraft gun, flak, flack, pom-pom, ack-ack, ack-ack gun - artillery designed to shoot upward at airplanes
--1 is a kind of gun
--1 has parts: predictor
--1 has particulars: Bofors gun