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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Scientists suggest that an unusual form of dark matter may be the solution. Quanta Magazine, 23 Oct. 2024 Read More: How Galaxies Live, Breathe and Die Future Research of Galaxy Formation Chamba says that researchers are working on how more mysterious mechanisms, such as the dispersion of dark matter, might influence star formation in galaxies. Conor Feehly, Discover Magazine, 15 Oct. 2024 The standard model of cosmology predicts a physical length for the sound horizon based on the gravitationally attracting ingredients of the early universe: dark matter, dark energy, neutrinos, photons and atoms. Marc Kamionkowski, Scientific American, 15 Oct. 2024 Related article Hubble images reveal new aspect of mysterious dark matter in the universe The first quintillionth of a second Scientists have made many guesses for what dark matter could be, ranging from unknown particles to extra dimensions. Jacopo Prisco, CNN, 17 June 2024 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 22 Nov. 2024.

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