Maxwell's Demon Definition

măkswĕlz, -wəlz
An imaginary creature who is able to sort hot molecules from cold molecules without expending energy, thus bringing about a general decrease in entropy and violating the second law of thermodynamics.
American Heritage

Other Word Forms of Maxwell's Demon


Maxwell's demon
Maxwell's demons

Origin of Maxwell's Demon

  • Named after physicist James Clerk Maxwell and demon, and probably from Greek daemon, a mythological being intermediate between gods and men.

    From Wiktionary

  • After James Clerk Maxwell

    From American Heritage Dictionary of the English Language, 5th Edition

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