noun
hand grenade; grenade
A small explosive device thrown by hand. The term 手榴弾 (しゅりゅうだん) is more common in modern Japanese, but 手投げ弾 is used in military contexts and news reports.
See also: 手榴弾
兵士は手投げ弾を敵陣に投げ込んだ。
The soldier threw a hand grenade into the enemy position.
テロリストが手投げ弾を使用した
It was reported that the terrorists used hand grenades.