trench mortar n a muzzle-loading high-angle gun with a short barrel that fires shells at high elevations for a short range Synonym(s) mortar howitzer
News & Articles trench mortar New World War I artifact on display at Shelby museum It's an Imperial German M1916 trench mortar known as the minenwerfer, or "mine thrower." Feb. 16, 2014 - WDAM-TV Hattiesburg