• Definition for "perpetual motion machine"
    • a hypothetical unit that exhibits perpetual movement, especially…
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  • Hypernym for "perpetual motion machine"

perpetual motion machine definition

  • noun:
    • a hypothetical unit that exhibits perpetual movement, especially one that does of use assist no input of power
    • a machine that will continue to do work indefinitely without drawing energy from some additional resource; impossible under the legislation of preservation of power
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