- a small patrol vessel, 100–200 feet (30–60 meters) long, designed for military operations against submarines.
Also called subchaser.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for submarine chaser
A curious boat that we undertook to furnish during the war was a cross between a destroyer and a submarine-chaser.Inventions of the Great War
A. Russell (Alexander Russell) Bond
It sinks slowly, and there is a slight momentum left in the submarine-chaser.
While the British prefer a smaller type of submarine-chaser, they have no criticism of ours.Our Navy in the War