| n. | 1. | A strong vessel, commonly in form of an inverted bell, in which substances are pounded or rubbed with a pestle. |
| 2. | (Mil.) A short piece of ordnance, used for throwing bombs, carcasses, shells, etc., at high angles of elevation, as 45°, and even higher; - so named from its resemblance in shape to the utensil above described.| Mortar piece | | a mortar. - Shak. |
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| 1. | (Arch.) A building material made by mixing lime, cement, or plaster of Paris, with sand, water, and sometimes other materials; - used in masonry for joining stones, bricks, etc., also for plastering, and in other ways. |
| v. t. | 1. | To plaster or make fast with mortar. |
| n. | 1. | A chamber lamp or light. |