| 1. | a mixture of lime or cement or a combination of both with sand and water, used as a bonding agent between bricks, stones, etc. |
| 2. | any of various materials or compounds for bonding together bricks, stones, etc.: Bitumen was used as a mortar. |
| 3. | to plaster or fix with mortar. |
mortar mor·tar (môr'tər)
n.
A vessel in which drugs or other substances are crushed or ground with a pestle.
A machine in which materials are ground and blended or crushed.