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

These aren't direct observations of dark matter, of course, but inferences made using dark matter's interactions with gravity as well as the influence gravity then has on ordinary matter and light. —Robert Lea, Space.com, 25 Nov. 2025

The energy spectrum or range of gamma-ray emission intensities observed matches the emission predicted by the annihilation of theoretical dark matter particles, with a mass of around 500 times that of a proton, according to the researchers. —Hannah Millington, MSNBC Newsweek, 25 Nov. 2025

But the findings, published Tuesday in the Journal of Cosmology and Astroparticle Physics, offer insights into the wild hunt for dark matter and the difficulties of searching the cosmos for something that cannot be seen. —Denise Chow, NBC news, 25 Nov. 2025

Now the mine is an underground laboratory, as scientists try to understand neutrino physics and the composition of dark matter miles beneath the surface. —Literary Hub, 21 Nov. 2025

Word History

First Known Use

1933, in the meaning defined above

Rhymes for dark matter

• backscatter
• antimatter
• atter
• batter
• blatter
• catarrh
• chatter
• clatter
• fatter
• flatter
• hatter
• latter