Machine, device, having a unique purpose, that augments or replaces human or animal effort for the accomplishment of physical tasks. The machine is a device that has a unique purpose, that augments or replaces human or animal effort for the accomplishment of physical tasks. A piece of equipment with several moving parts that uses power to do a particular type of work…. A machine can augment or replace the efforts required by an animal or human to make it easier … The term is commonly applied to artificial devices, such as those employing engines … A machine is a physical system that uses power to apply forces and control movement to perform an action. Machines range from simple tools like pulleys and levers to complex systems … The wedge, the inclined plane (ramp), the screw, the lever, the pulley, and the wheel and axle. A machine is a mechanical device that uses power to apply force and control motion to perform work efficiently. How to use machine in a sentence. · a machine is a device with several parts that work together to perform a task. Compound machines are made up of … A simple machine is a wheel, a lever, or an inclined plane. Of, relating to, or felt to resemble a machine: The meaning of machine is a mechanically, electrically, or electronically operated device for performing a task. Simple machine there are six simple machines. Machines are often designed to yield a high mechanical advantage to reduce the effort needed to do that work.