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

Researchers hope the effort may yield clues about dark matter as well as an equally puzzling force known as dark energy. — Adithi Ramakrishnan, Los Angeles Times, 7 July 2026

Scientists expect the project to reveal new asteroids, supernovas, and clues about dark matter and dark energy. — Eric Lagatta, USA Today, 7 July 2026

While the mission was designed with dark energy, dark matter, and exoplanets in mind, Roman’s unprecedented observational capability will offer practically limitless opportunities for astronomers to explore all kinds of cosmic topics. — Richard Tribou, The Orlando Sentinel, 5 July 2026

The theory cannot account for dark matter and offers no explanation for why the universe is made almost entirely of matter rather than equal parts matter and antimatter. — Florencia Canelli, Scientific American, 1 July 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