- a portable, muzzle-loaded mortar, usually having a smooth bore, fired at high angles of elevation to reach concealed enemy targets.
Origin of trench mortar
First recorded in 1915–20
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for trench mortar
The Huns, unable to rush the position, were bringing up a trench-mortar.A Lively Bit of the Front
Percy F. Westerman
The German who fired the trench-mortar had done better than he knew.
That moment a brave German seized to fire a trench-mortar point-blank.
We unearthed some remnants of trench-mortar ammunition-boxes.Fighting the Boche Underground
Harry Davis Trounce
I was assisting at some trench-mortar tests which have lasted several days.A Blue Devil of France
G. P. Capart
- a portable mortar used in trench warfare to shoot projectiles at a high trajectory over a short range
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012