acoustic torpedo

American  

noun

1. a torpedo guided by sound that either emanates from the target or is emitted by the torpedo and bounces off the target.

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Example Sentences

An acoustic torpedo hit the ship with devastating force.

From Washington Times

This acoustic torpedo was equipped with a 500-watt speaker that popped out of its nose and played “tactical sounds” to decoy enemy ships, and then, like all the rest, self-destructed.

From Slate

A helo dropped a Bloodhound�a practice acoustic torpedo of a type that would carry a nuclear warhead in battles.

From Time Magazine Archive