noun
proximity fuze; influence fuze; VT fuze
Military term for a fuze that detonates a projectile when it comes near a target, without requiring direct contact. Also known as a variable-time (VT) fuze.
近接信管は、目標に近づいただけで爆発する仕組みだ。
A proximity fuze is a mechanism that detonates just by approaching the target.
第二次世界大戦で、近接信管は対空砲弾に使われた。
In World War II, proximity fuzes were used in anti-aircraft shells.