cosmic string

noun

Definition of cosmic string

: any of a class of hypothetical supermassive astronomical objects that are extremely thin but are millions of light years long and that are postulated to have formed very early in the history of the universe

Examples of cosmic string in a Sentence

Recent Examples on the Web Gravitational waves could help with the search for cosmic strings—putative enormous, superdense filamentary structures in space. The Economist, "Gravitational astronomy proves its maturity," 22 Aug. 2019 And some macroscopic signatures of the theory that might have been seen, such as cosmic strings and supersymmetry, have not shown up. Quanta Magazine, "Why Is M-Theory the Leading Candidate for Theory of Everything?," 18 Dec. 2017 Wormholes, black holes, cosmic strings, and circulating light beams have all been suggested as potential solutions for time-traveling to the past. Matt Blitz, Popular Mechanics, "We Already Know How To Build a Time Machine," 28 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cosmic string.' 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 cosmic string

1983, in the meaning defined above

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The first known use of cosmic string was in 1983

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Cite this Entry

“Cosmic string.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/cosmic%20string. Accessed 10 December 2019.

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Britannica.com: Encyclopedia article about cosmic string

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