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|Noun||1.||estraterrestrial body - a natural object existing outside the earth and outside the earth's atmosphere|
natural object - an object occurring naturally; not made by man
comet - (astronomy) a relatively small extraterrestrial body consisting of a frozen mass that travels around the sun in a highly elliptical orbit
meteor, meteoroid - (astronomy) any of the small solid extraterrestrial bodies that hits the earth's atmosphere
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