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zero-point energy

[zeer-oh-point] /ˈzɪər oʊˌpɔɪnt/
noun, Physics.
energy in a substance at the temperature of absolute zero.
Origin of zero-point energy
First recorded in 1930-35 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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zero-point energy in Science
zero-point energy  
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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