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

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

Two leading space scientists say there is a need to redefine the edge of the solar system by presenting a theory which states that measurements of the Milky Way's gravitational field, including its dark matter, redraws the sun's frontier. — Leonard David, Space.com, 16 Oct. 2026

That makes this galactic trio bad news for MOND, or modified Newtonian dynamics, an alternative to dark matter proposed in 1983 by the physicist Mordehai Milgrom. — Quanta Magazine, 14 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