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

And radiation flows out of an overdense region whether it’s made of normal matter, dark matter, or both. —Big Think, 23 Oct. 2025

Gradually, dark matter particles gravitated towards the center of the galaxy. —Chris Young, Interesting Engineering, 16 Oct. 2025

If confirmed, the findings would open an entirely new observational window on dark matter, bringing scientists a step closer to unraveling one of the greatest mysteries in cosmology. —Sharmila Kuthunur, Space.com, 15 Oct. 2025

Whichever the case, the researchers are now curious to discover more characteristics of the intriguing object, including determining whether dark matter can exist in small clumps without stars. —Eric Lagatta, USA Today, 13 Oct. 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