Machine A worker operating a milling machine in the early 20th century A machine is a thermodynamic system that uses power to apply forces and control movement to perform an action. The term is commonly applied to artificial devices, such as those employing engines or motors, but also to natural biological macromolecules, such as molecular ...
machine, device, having a unique purpose, that augments or replaces human or animal effort for the accomplishment of physical tasks.
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