me·te·or·oid /ˈmitiəˌrɔɪd/
流星體
Me·te·or·oid n. Astron. A small body moving through space, or revolving about the sun, which on entering the earth's atmosphere would be deflagrated and appear as a meteor.
These bodies [small, solid bodies] before they come into the air, I call meteoroids. --H. A. Newton.
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meteoroid
n : (astronomy) any of the small solid extraterrestrial bodies
that hits the earth's atmosphere [syn: meteor]