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
This means that, today, dark energy dominates the Universe, while dark matter and normal matter play a sub-dominant role.
—
Ethan Siegel, Big Think, 3 Oct. 2025
Its decay produces flashes of light in the detector that can mimic potential dark matter signals.
—Kapil Kajal, Interesting Engineering, 2 Oct. 2025
Both projects were organized to determine if the 68 percent of all mass and energy, collectively termed dark matter, originates from a pure cosmological constant.
—Andrew Paul, Popular Science, 1 Oct. 2025
The glowing road between peaks shows the partnerships between facilities who work together to advance astronomy by looking at things from near-Earth objects to distant galaxies to dark matter.
—Kenna Hughes-Castleberry, Space.com, 30 Sep. 2025
See All Example Sentences for dark matter
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Ethan Siegel, Big Think, 3 Oct. 2025
Its decay produces flashes of light in the detector that can mimic potential dark matter signals.
—Kapil Kajal, Interesting Engineering, 2 Oct. 2025
Both projects were organized to determine if the 68 percent of all mass and energy, collectively termed dark matter, originates from a pure cosmological constant.
—Andrew Paul, Popular Science, 1 Oct. 2025
The glowing road between peaks shows the partnerships between facilities who work together to advance astronomy by looking at things from near-Earth objects to distant galaxies to dark matter.
—Kenna Hughes-Castleberry, Space.com, 30 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 8 Oct. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share