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/ˈæstərɔɪd/
Meaning & Definition
noun
A small rocky body orbiting the sun, mostly found in the asteroid belt between Mars and Jupiter.
The spacecraft was launched to study the asteroid that was discovered last year.
Any small celestial body that orbits the sun, particularly in the region between Mars and Jupiter.
Scientists believe that some asteroids may contain valuable minerals.
A minor planet.
An asteroid passed close to Earth last night, but it posed no threat.
Etymology
From Greek 'asteroeides', meaning 'star-like'.
Common Phrases and Expressions
asteroid belt
The region between the orbits of Mars and Jupiter where most asteroids are found.
near-Earth asteroid
An asteroid whose orbit brings it into proximity with Earth.
Related Words
comet
A celestial object made of ice and dust that, when close to the sun, displays a visible atmosphere or coma.
meteor
The flash of light produced when a meteoroid enters the Earth's atmosphere.
Slang Meanings
Used to describe someone or something that is far away or seems distant.
He's so out of touch, he's living on an asteroid.