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allochthon
[ uh-lok-thuhn, -thon ]
/ əˈlɒk θən, -θɒn /
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This shows grade level based on the word's complexity.
noun Geology.
a geological formation not formed in the region where found and moved to its present location by tectonic forces.Compare autochthon (def. 3).
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Origin of allochthon
First recorded in 1940–45; back formation from allochthonous
Words nearby allochthon
allocation, allocheiria, allocher, allochromasia, allochromatic, allochthon, allochthonous, allocortex, allocution, allodial, allodium
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022