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meteorite

资料来源 : pyDict

陨星

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Meteorite \Me"te*or*ite\, n. [Cf. F. m['e]t['e]orite.] (Min.)
   A mass of stone or iron which has fallen to the earth from
   space; an a["e]rolite.

   Note: Meteorites usually show a pitted surface with a fused
         crust, caused by the heat developed in their rapid
         passage through the earth's atmosphere. A meteorite may
         consist: 1. Of metallic iron, alloyed with a small
         percentage of nickel (meteoric iron, holosiderite).
         When etched this usually exhibits peculiar crystalline
         figures, called Widmanst["a]tten figures. 2. Of a
         cellular mass of iron with imbedded silicates
         (mesosiderite or siderolite). 3. Of a stony mass of
         silicates with little iron (meteoric stone,
         sporadosiderite). 4. Of a mass without iron
         (asiderite).

资料来源 : WordNet®

meteorite
     n : stony or metallic object that is the remains of a meteoroid
         that has reached the earth's surface
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