paravane

(parə vān′)

noun

either of a pair of torpedo-shaped devices which, in conjunction with the cables by which they are towed from the bow of a ship, are used to cut the moorings of submerged mines, allowing them to surface and be destroyed

Origin: para- + vane

See paravane in American Heritage Dictionary 4

noun
A device equipped with sharp teeth and towed alongside a ship to cut the mooring cables of submerged mines.

Origin:

Origin: From its having vanes to keep it at a constant depth

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