noun
unmanned combat air vehicle (UCAV); combat drone; drone
Refers specifically to an unmanned aircraft designed for combat missions, as opposed to reconnaissance or civilian drones.
無人爆撃機が敵の基地を攻撃した。
The combat drone attacked the enemy base.
最新の無人爆撃機は高度な自律飛行が可能だ。
The latest UCAV is capable of advanced autonomous flight.
Compound of 無人 (unmanned) + 爆撃 (bombing) + 機 (machine/aircraft).