perpetual motion machine of the second kind
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perpetual motion machine of the second kind
[pər′pech·ə·wəl ′mō·shən mə‚shēn əvthə ′sek·ənd ‚kīnd] (physics)
A device that extracts heat from a source and then converts this heat completely into other forms of energy; it violates the second law of thermodynamics.