Bedeutung von “mortar” — Learner’s Dictionary

mortar

noun us uk /ˈmɔːtər/
WEAPON [ C ]

a heavy gun that fires explosives high into the air:

a mortar attack/bomb
MIXTURE [ U ]

a mixture of substances, for example sand and water, that is used between bricks or stones to keep them together

(Definition von “mortar” aus dem Cambridge Learner's Dictionary © Cambridge University Press)