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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This experiment contains a magnet that has an ion trap in it that is sensitive to weak electric fields that might be produced from axions (a dark matter candidate) interacting with the large magnetic field.
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Sunya Bhutta, Scientific American, 22 Sep. 2025
Only after adding a massive, invisible halo of dark matter to their computer models could the researchers reproduce what the radio telescope had observed.
—Samantha Mathewson, Space.com, 20 Sep. 2025
The thorium-229 spectra used in the current study had a linewidth of about 20 gigahertz, considered broad compared to the razor-thin signals needed to probe dark matter.
—New Atlas, 16 Sep. 2025
Instead, with this tweak to dark matter, the early protostar that forms will instead remain in a large, relatively cool state for a long time, which can grow the protostar up to 100,000 solar masses or even more.
—Ethan Siegel, Big Think, 2 Sep. 2025
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Sunya Bhutta, Scientific American, 22 Sep. 2025
Only after adding a massive, invisible halo of dark matter to their computer models could the researchers reproduce what the radio telescope had observed.
—Samantha Mathewson, Space.com, 20 Sep. 2025
The thorium-229 spectra used in the current study had a linewidth of about 20 gigahertz, considered broad compared to the razor-thin signals needed to probe dark matter.
—New Atlas, 16 Sep. 2025
Instead, with this tweak to dark matter, the early protostar that forms will instead remain in a large, relatively cool state for a long time, which can grow the protostar up to 100,000 solar masses or even more.
—Ethan Siegel, Big Think, 2 Sep. 2025
See All Example Sentences for dark matter
Cite this Entry
“Dark matter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dark%20matter. Accessed 4 Oct. 2025.
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