noun A mixture of lime or cement, sand and water used for bonding building blocks.
noun A hollow vessel used to pound, crush, rub, grind or mix ingredients with a pestle.
noun A short, heavy, large-bore cannon designed for indirect fire at very steep trajectories.
noun A relatively lightweight, often portable indirect fire weapon which transmits recoil to a base plate and is designed to lob explosive shells at very steep trajectories. .mw-parser-output .defdate{font-size:smaller}
noun In paper milling, a trough in which material is hammered.
verb To use mortar or plaster to join two things together.