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noun

mortar

MAW-tuh
noun
1
A paste of sand, water and cement or lime used to bond bricks or stones together.
"The bricklayer spread a thin layer of mortar before setting each brick."
"Years of rain had eaten away at the mortar between the stones."
2
A small bowl used with a pestle to crush or grind ingredients.
"She ground the peppercorns in a stone mortar."
"The pharmacist mixed the powder using a mortar and pestle."
3
A short-barreled weapon that fires shells high into the air to hit targets at a steep angle.
"The camp came under mortar fire just before dawn."
"Soldiers set up the mortar behind the ridge."
verb
1
To attack a target by firing mortar shells at it.
"Enemy positions were mortared throughout the night."

How to Use Mortar

Learner’s notes

In plain EnglishThe stuff that holds bricks together, a bowl for grinding, or a weapon that lobs shells — context makes it clear which.

Common pairings
mortar and pestle bricks and mortar mortar fire mortar shell

Word Forms

mortared past tense, mortars plural, mortars singular

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The bricklayer spread a thin layer of _____ before setting each brick.

Etymology

From Old French mortier, from Latin mortarium — the same word originally covered both the grinding bowl and, later, the building paste and the weapon, all linked by the idea of "pounding" or "mixing".

Definitions: FreeDict original editorial