1 [U] a mixture of sand, water, LIME and CEMENT used in building for holding bricks and stones together
2 [C] a heavy gun that fires bombs and SHELLS high into the air; the bombs that are fired by this gun:
to come under mortar fire / attack
3 [C] a small hard bowl in which you can crush substances such as seeds and grains into powder with a special object (called a PESTLE)
IDIOMS see BRICKn.
verb [V, VN] to attack sb/sth using a mortar
