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English definition of “mortar”

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mortar

noun
 
 
/ˈmɔːtər/
WEAPON [C] a heavy gun that fires explosives high into the air: a mortar attack/bomb Guns
MIXTURE [U] a mixture of substances, for example sand and water, that is used between bricks or stones to keep them togetherBuilding materials
(Definition of mortar from the Cambridge Learners Dictionary © Cambridge University Press)
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