| meteoroid | | |
| n. | 1. meteor, 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. |
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