01 n. A small body moving through space, or revolving about the sun, which on entering the earth's atmosphere would be deflagrated and appear as …
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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.(Astron.)“These bodies [small, solid bodies] before they come into the air, I call meteoroids.” — H. A. Newton.