曳えい火か弾だんMeanings1nountime-fuze shell; air-burst shellobsolete termmilitaryObsolete military term for an artillery shell that detonates in the air using a time fuze.旧きゅう日本にほん軍ぐんでは曳えい火か弾だんが対たい空くう射しゃ撃げきに使つかわれた。In the former Japanese military, time-fuze shells were used for anti-aircraft fire.