dark matter

noun

: 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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Yet blobs of dark matter were busy pulling in the surrounding gas, some of it condensing enough to set off nuclear fusion. The Editors, JSTOR Daily, 30 Jan. 2025 Nguyen and his colleagues — Fabian Schmidt, Beatriz Tucci, Martin Reinecke and Andrija Kostić of the Max Planck Institute for Astrophysics in Germany — initially tested FLI on simulated maps of dark matter haloes, which are vast clouds of dark matter that surround galaxies and galaxy clusters. Keith Cooper, Space.com, 28 Jan. 2025 Although scientists have dreamt up dozens of models for dark matter’s potential composition and precise properties, most of these proposals predict infinitesimally small effects on normal particles. IEEE Spectrum, 12 Jan. 2025 The team's findings, which were published Monday in the journal Nature, also unveil a method of investigating dark matter, which remains one of the universe's greatest mysteries, study co-author Fengwu Sun said. Eric Lagatta, USA TODAY, 6 Jan. 2025 See all Example Sentences for dark matter 

Word History

First Known Use

1933, in the meaning defined above

Time Traveler
The first known use of dark matter was in 1933

Dictionary Entries Near dark matter

Cite this Entry

“Dark matter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dark%20matter. Accessed 11 Feb. 2025.

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