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mortar

n. · v.
US //ˈmɔɹtɝ// UK //mˈɔːtɐ// mor·tar
  1. 1 building material (n.)
    B2 Upper Intermediate

    a mixture of sand, water, and cement used to stick bricks or stones together.

    a workable paste used to bind building blocks such as stones, bricks, and concrete masonry units together.

    Example

    The builder applied a fresh layer of mortar between the red bricks.

    Example

    The restoration team had to source a specific lime-based mortar to match the original eighteenth-century masonry of the cathedral walls.

  2. 2 grinding bowl (n.)
    C1 Advanced Technical Cooking

    a hard bowl used with a heavy tool called a pestle to crush spices or medicine into powder.

    a sturdy vessel in which substances are crushed or ground with a pestle.

    Example

    She used a stone mortar to grind the garlic and herbs into a paste.

    Example

    The pharmacist used a ceramic mortar and pestle to pulverise the tablets into a fine powder for the compound.

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  1. 3 weapon (n.)
    C1 Advanced Technical Military

    a short, portable gun that fires explosive shells high into the air so they fall down on a target.

    a muzzle-loading indirect fire weapon that transmits recoil to a base plate and fires shells at high angles.

    Example

    The soldiers set up the mortar behind the hill to hide from the enemy.

    Example

    The infantry unit deployed a lightweight mortar to provide immediate indirect fire support during the mountain operation.

  2. 4 to attack with shells (v.)
    C2 Proficiency Technical Military

    to attack a place using mortar weapons.

    to bombard a target with mortar shells. Transitive when used with a direct object.

    Example

    The enemy started to mortar the city at midnight.

    Example

    The retreating forces continued to mortar the bridgehead in an attempt to delay the advancing columns.

Origin

From Middle English morter, from Old French mortier, from Latin mortārium. Doublet of mortarium.

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