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

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

This should allow researchers to hunt for dark matter particles similar in size to electrons. —Robert Lea, Space.com, 28 Aug. 2025

For example, Cranmer and his collaborators used a machine learning model to predict the density of clumps of dark matter in the universe, based on observable properties of other such nearby clumps. —Anil Ananthaswamy, Wired News, 16 Aug. 2025

Dark energy and dark matter, for instance, have never been directly detected—only their effects. —Sarah Scoles, JSTOR Daily, 31 July 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