| 单词 | heterochthonous | 
| 释义 | heterochthonousadjective  het·er·och·tho·nous  1   : not indigenous : foreign, naturalized  a heterochthonous flora 2  a    : not formed in the place where it now occurs : transported  heterochthonous rock  b    : removed from the original deposit (as by erosion) and reembedded (as certain fossils)   | 
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