chon·drule /ˈkɑn(ˌ)drul/
  隕石球粒; 粒狀體
  Chon·drule n.  Min. A peculiar rounded granule of some mineral, usually enstatite or chrysolite, found imbedded more or less abundantly in the mass of many meteoric stones, which are hence called chondrites.
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  chondrule
       n : small granule (of e.g. chrysolite) found in some meteoric
           rocks