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

Many black holes may be unobservable, owing to their having no companions, and dark matter may be attuned to a fifth dimension. — J. B. MacKinnon, Harpers Magazine, 27 Oct. 2026

Black holes more massive than entire galaxies are not a major component of the mysterious dark matter that's thought to make up most of the matter in the cosmos, a new study finds. — Charles Q. Choi, Space.com, 23 Oct. 2026

His research explores subjects like gravitational physics, dark matter, dark energy and observational cosmology, according to Harvard's website. — Ashley Capoot, CNBC, 21 Oct. 2026

Over billions of years, gravity amplified these small density variations, helping produce the large-scale cosmic web of galaxies and dark matter observed today. — Kaif Shaikh, Interesting Engineering, 20 Oct. 2026

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