energy whose existence is postulated by astrophysicists to account for the perceived acceleration of the expansion of the universe
dark energy
Webster's New World College Dictionary, Fifth Edition Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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"dark energy." YourDictionary, n.d. Web. 13 October 2018. <http://www.yourdictionary.com/dark-energy>.
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dark energy. (n.d.). Retrieved October 13th, 2018, from http://www.yourdictionary.com/dark-energy
dark energy
noun
A hypothetical form of energy that permeates all space and tends to cause the universe to expand by exerting a gravitational repulsion, countering ordinary gravitational attraction. Quintessence and the vacuum energy represented by the cosmological constant are possible forms of dark energy.
THE AMERICAN HERITAGE® DICTIONARY OF THE ENGLISH LANGUAGE, FIFTH EDITION by the Editors of the American Heritage Dictionaries. Copyright © 2016, 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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MLA Style
"dark energy." YourDictionary, n.d. Web. 13 October 2018. <http://www.yourdictionary.com/dark-energy>.
APA Style
dark energy. (n.d.). Retrieved October 13th, 2018, from http://www.yourdictionary.com/dark-energy
Noun
(uncountable)
- (astronomy, astrophysics) A hypothetical form of energy which, it is supposed, is spread uniformly throughout space (time) and has anti-gravitational properties: it represents a possible mechanism for the cosmological constant, and thus is one of the possible explanations for the current accelerating rate of expansion of the universe; and it is estimated to account for about 74% of the mass-energy of the universe.
English Wiktionary. Available under CC-BY-SA license.
Link to this page
Cite this page
MLA Style
"dark energy." YourDictionary, n.d. Web. 13 October 2018. <http://www.yourdictionary.com/dark-energy>.
APA Style
dark energy. (n.d.). Retrieved October 13th, 2018, from http://www.yourdictionary.com/dark-energy
