mortar

Noun

• a bowl-shaped vessel in which substances can be ground and mixed with a pestle

• used as a bond in masonry or for covering a wall

• a muzzle-loading high-angle gun with a short barrel that fires shells at high elevations for a short range

Verb

• plaster with mortar
  • mortar the wall
    

Related words

• Synonyms: 
  howitzer , trench mortar