Trench Mortar Definition
noun
Any of various portable mortars for shooting projectiles at a high trajectory and short range.
Webster's New World
A mortar usually ranging from 3 to 9.45 inches in caliber, designed for use in forward positions, especially in trenches.
American Heritage
Other Word Forms of Trench Mortar
Noun
Singular:
trench mortar
Plural:
trench-mortars
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