mortar

Definition/Scope: A muzzle-loading, indirect fire weapon with either a rifled or smooth bore. It usually has a shorter range than a howitzer, employs a higher angle of fire, and has a tube, length of 10 to 20 calibers.

Acronym:

mort

Broader Terms:

cannons
explosive ordnance

Narrower Terms:

armored mortar system
M1 mortars
M120/M121 mortar
M121 mortars
M224 mortars
M252 mortars
M29 mortars

Related Terms:

gun
howitzer
indirect fire
lethal fire support