allochthon
[ uh-lok-thuhn, -thon ]
nounGeology.
a geological formation not formed in the region where found and moved to its present location by tectonic forces.: Compare autochthon (def. 3).
Origin of allochthon
1First recorded in 1940–45; back formation from allochthonous
Words Nearby allochthon
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
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