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单词 allochthon
释义

WordReference Random House Unabridged Dictionary of American English © 2024
al•loch•thon  (ə lokthən, -thon),USA pronunciation n. [Geol.]
  1. Geologya geological formation not formed in the region where found and moved to its present location by tectonic forces. Cf. autochthon (def. 3).
  • back formation from allochthonous 1940–45

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