单词 | extraterrestrial object |
释义 | extraterrestrial object (once / 11819311 pages) n WORD FAMILY extraterrestrial object USAGE EXAMPLESHowever the most compelling hypothesis remains the impact of a natural extraterrestrial object. Scientific American(Jun 30, 2012) n a natural object existing outside the earth and outside the earth's atmosphere Syn|Hypo|Hyper estraterrestrial body 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 meteoritestony or metallic object that is the remains of a meteoroid that has reached the earth's surface meteor swarma group of meteoroids with similar paths natural object an object occurring naturally; not made by man |
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