meteor 
1. (astronomy) any of the small solid extraterrestrial bodies that hits the earth's atmosphere (Freq. 6) • Syn: meteoroid • Derivationally related forms: meteoric • Topics: astronomy, uranology • Hypernyms: extraterrestrial object, estraterrestrial body • Hyponyms: meteorite, meteor swarm 2. a streak of light in the sky at night that results when a meteoroid hits the earth's atmosphere and air friction causes the meteoroid to melt or vaporize or explode • Syn: shooting star • Hypernyms: light, visible light, visible radiation • Hyponyms: bolide, fireball • Part Holonyms: meteor shower, meteor stream
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