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minehunter

n. A naval vessel that actively detects and destroys individual mines.

Wikipedia
Minehunter

A minehunter is a naval vessel that actively detects and destroys individual naval mines. Minesweepers, on the other hand, clear mined areas as a whole, without prior detection of mines. A vessel that combines both of these roles is known as a mine countermeasures vessel (MCMV).