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

Thanks to Gaia, scientists now can better gauge the amount of dark matter within our galaxy and have been able to track the Milky Way’s growth and evolution across eons via relic streams of stars strewn from ancient mergers with other, smaller galaxies. —Lee Billings, Scientific American, 18 June 2025

This structure, largely made of dark matter, serves as the backbone of the universe, according to NASA. —Ashley Strickland, CNN Money, 16 June 2025

Wissel said that there have been some theories that this could be dark matter, but it can’t be confirmed and remains a mystery. —Nick Butler, FOXNews.com, 14 June 2025

So, therefore this one-micron dimension space will potentially carry in it some long gravity waves which would play the role of dark matter. —Steven Strogatz, Quanta Magazine, 29 May 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