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allochthonous

al·loch·thon·ous [ ə lókthənəss ]


adjective 
Definition:
 
1. not in original position: describes features of the landscape or elements of its geologic structure that have been moved to their current position by tectonic forces.
See also  autochthonous (sense 1)


2. introduced: describes flora, fauna, or inhabitants that have moved to the region in which they are found from elsewhere.
See also  autochthonous (sense 2)


[Early 20th century. < Greek allochthon< allo- "other" + khthōn "soil"]
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