a club-shaped hand tool for grinding and mixing substances in a mortar | any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks |
a heavy tool of stone or iron (usually with a flat base and a handle) that is used to grind and mix material (as grain or drugs or pigments) against a slab of stone | a motor vehicle with four wheels; usually propelled by an internal combustion engine |
machine consisting of a heavy bar that moves vertically for pounding or crushing ores | a device for overcoming resistance at one point by applying force at some other point |
| a group that controls the activities of a political party |
| an intricate organization that accomplishes its goals efficiently |
| an efficient person |