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A solid body, moving in space, that is smaller than an asteroid and at least as large as a speck of dust.
(Celestial Objects) any of the small celestial bodies that are thought to orbit the sun, possibly as the remains of comets. When they enter the earth's atmosphere, they become visible as meteors
me•te•or•oid(ˈmi ti əˌrɔɪd)
any of the small bodies of rock or metal traveling through space that, upon entering the earth's atmosphere, are heated to glowing and become meteors.
A rocky celestial body that travels through interplanetary space in an orbit that crosses the Earth's orbit. See Note at meteor.
A solid body moving through space that is smaller than an asteroid.
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|Noun||1.||meteoroid - (astronomy) any of the small solid extraterrestrial bodies that hits the earth's atmosphere|
astronomy, uranology - the branch of physics that studies celestial bodies and the universe as a whole
estraterrestrial body, extraterrestrial object - a natural object existing outside the earth and outside the earth's atmosphere
meteorite - stony or metallic object that is the remains of a meteoroid that has reached the earth's surface
meteor swarm - a group of meteoroids with similar paths