exoplanet

noun

exo·​plan·​et ˈek-sō-ˌpla-nət 

ˌek-sō-ˈpla-

: a planet orbiting a star that is not our sun

Examples of exoplanet in a Sentence

Recent Examples on the Web

Once in space, the telescope is expected to provide a better look into space and our understanding of dark energy, and look for exoplanets and planet-forming discs. —Adam Harrington, CBS News, 21 June 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, 17 June 2026

According to He-Man lore, this exoplanet, or planet outside of our solar system, lies at the exact center of the universe. —Chelsea Gohd, Space.com, 5 June 2026

Searching For 100,000 New Worlds Scientists expect the mission to identify around 100,000 new planets, a dramatic increase over the nearly 6,300 exoplanets discovered to date. —Jamie Carter, Forbes.com, 2 June 2026

Word History

First Known Use

1992, in the meaning defined above

Rhymes for exoplanet

• pomegranate
• gannet
• granite
• planet
• intranet