cosmological constant
noun
: a constant term used in the relativistic equations for gravity to represent a repulsive force which may account in part for the rate of expansion of the universe
Examples of cosmological constant in a Sentence
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The Lambda Cold Dark Matter model (ΛCDM) represents the cosmological constant, a term in Albert Einstein’s theory of general relativity that explains the acceleration of the expansion of the Universe.
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Madison Dapcevich, Discover Magazine, 18 July 2025
Therefore, the cosmological constant is proportional to the square of the angular velocity of the universe.
—Robert Lea, Space.com, 21 June 2025
The cosmological constant is supposed to be constant over time in the LCDM model.
—Robert Lea, Space.com, 31 Dec. 2024
But the combination of cosmological constant and baby universes can match the data better than a scenario where baby universes don’t exist, and the scenario involving both a small cosmological constant and merging can relieve a big chunk of the Hubble tension.
—Discover Magazine, 25 Sep. 2024
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Madison Dapcevich, Discover Magazine, 18 July 2025
Therefore, the cosmological constant is proportional to the square of the angular velocity of the universe.
—Robert Lea, Space.com, 21 June 2025
The cosmological constant is supposed to be constant over time in the LCDM model.
—Robert Lea, Space.com, 31 Dec. 2024
But the combination of cosmological constant and baby universes can match the data better than a scenario where baby universes don’t exist, and the scenario involving both a small cosmological constant and merging can relieve a big chunk of the Hubble tension.
—Discover Magazine, 25 Sep. 2024
See All Example Sentences for cosmological constant
Cite this Entry
“Cosmological constant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cosmological%20constant. Accessed 30 Jul. 2025.
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