cold dark matter

noun

Definition of cold dark matter

: a form of dark matter theorized to consist of slow-moving elementary particles and to have contributed to the formation of large-scale structure (such as galaxies) in the early universe

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Cite this Entry

“Cold dark matter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cold%20dark%20matter. Accessed 27 Oct. 2021.

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