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Wiktionary
proximity fuse

alt. A fuse that is designed to detonate an explosive automatically when close enough to the target to destroy it. n. A fuse that is designed to detonate an explosive automatically when close enough to the target to destroy it.

Usage examples of "proximity fuse".

The magnetic needle didn't quiver once to indicate a hidden magnetic switch or mass proximity fuse.

The proximity fuse had been an advance in ordnance, but not a thrust into a prime secret of nature.

There should have been no escape, but the SA-6 had a radar-proximity fuse, and the passing Zunis triggered it, exploding the SAM harmlessly half a kilometer away.

This, Trafford thought, would be the warning signal, the shot across the bows, with a proximity fuse that would detonate its warhead when it was a safe (but not overly safe) distance from the target.

The torpedo closed the few remaining feet at her tail, its proximity fuse triggered.

That meant that the proximity fuse on the SM-2 was the important variable in the equation, Gregory decided.

They might actually have been better off with the old VT proximity fuse of World War II, which had used a non-directional RF emitter, instead of the new high-tech gallium-arsenide laser chip.

There was a triple crack as the mortar-bombs exploded in midair--one uncomfortably close to the height that its proximity fuse would have detonated it anyway.

There was a triple crack as the mortarbombs exploded in midair-one uncomfortably close to the height that its proximity fuse would have detonated it anyway.

The torpedo sizzled past Mara less than two meters beyond the sub's starboard dive plane, and Mara felt herself brace against the power of the explosion that would come with the detonation of a proximity fuse.