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zero-point energy

[zeer-oh-point]
noun Physics.
  1. energy in a substance at the temperature of absolute zero.

Origin of zero-point energy

First recorded in 1930–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
zero-point energy in Science

zero-point energy

  1. The irreducible minimum energy possessed by a physical system, as of a substance at a temperature of absolute zero. The zero point energy of a vacuum is not zero due to vacuum fluctuations. See Note at absolute zero.
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