proximity fuze

noun
a design for detonating a charge, as in a projectile, within a predesignated radius of a target.
Also called variable time fuze, VT fuze.


Origin:
1940–45

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Encyclopedia Britannica
Encyclopedia

proximity fuze

an explosive ignition device used in bombs, artillery shells, and mines. The fuze senses when a target is close enough to be damaged or destroyed by the weapon's explosion. The sensor is typically a small radar set that sends out signals and listens for their reflections from nearby objects.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
For example, a proximity fuze may also have an impact or self-destruct feature.
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