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

Recent Examples on the Web
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That's because astronomers can use our understanding of white dwarfs as a baseline to search for more exotic phenomena such as dark matter. Keith Cooper, Space.com, 19 Dec. 2024 The year crashing galaxy clusters revealed the motion of dark matter One of the best places to measure possible dark matter interactions are galaxy clusters. Keith Cooper, Space.com, 25 Dec. 2024 This theory makes definite predictions about the distribution of dark matter, but leaves great uncertainty in the rather messy physics whereby gas agglomerates and converts into stars. Josh Hammer, Newsweek, 23 Dec. 2024 Then in September, a separate group of physicists pointed out that another dark matter candidate sometimes called fuzzy dark matter could do the trick as well. Jonathan O’Callaghan, WIRED, 1 Dec. 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 5 Jan. 2025.

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