dark matter

noun

Definition of dark matter 

: nonluminous matter not yet directly detected by astronomers that is hypothesized to exist to account for various observed gravitational effects

Examples of dark matter in a Sentence

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This is in contrast to a recent proposal for a Bose-Einstein condensate of dark matter to explain the lack of hydrogen absorption, which seems hideously complex. Chris Lee, Ars Technica, "Neutrinos may decay invisibly, resolving problems in IceCube data," 24 Sep. 2018 In contrast, a hot cloud could collapse into a single giant object, with a little help from the gravitational pull of dark matter, Bromm suggests. Daniel Clery, Science | AAAS, "Discovery of middleweight black holes could explain origin of million-solar-mass monster," 30 May 2018 Will dark matter and dark energy ever be actually seen? Samantha Mathewson, Space.com, "Mysterious Milky Way Signal Comes from the Past, Not Dark Matter," 13 Mar. 2018 Astronomers have found a distant galaxy where there is no dark matter. Seth Borenstein, chicagotribune.com, "Astronomers baffled by distant galaxy devoid of dark matter," 28 Mar. 2018 DeNegri's wife, Amy, reported to CNN that pink and dark matter came out of the can, prompting the couple to call the FDA and Poison Control. Mandy Major, Woman's Day, "10 Strange Objects Found in Food," 3 Nov. 2010 If borne out, the findings would be nothing short of revolutionary, introducing a new fundamental particle to the lexicon of physics that might even help explain the mystery of dark matter. Clara Moskowitz, Scientific American, "Evidence Builds for a New Kind of Neutrino," 7 June 2018 Scientists have known dark matter exists, indirectly, through measurements based on gravity. Washington Post, "Astronomers glimpse cosmic dawn, when the stars switched on," 28 Feb. 2018 The character, who can fly and control dark matter, is locked in a bitter conflict with his brother after their mother leaves them, a story line loosely based on Zaire’s own childhood. Ryan Faughnder, latimes.com, "Movie studio seeks a behind-the-scenes role in L.A. schools to help fix Hollywood's inclusion problem," 29 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dark matter.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of dark matter

1979, in the meaning defined above

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Last Updated

3 Dec 2018

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The first known use of dark matter was in 1979

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