allochthon
[ uh-lok-thuh n, -thon ]
/ əˈlɒk θən, -θɒn /
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).
Nearby words
allocation, allocheiria, allocher, allochromasia, allochromatic, allochthon, allochthonous, allocortex, allocution, allod, allodial
Origin of allochthon
First recorded in 1940–45; back formation from allochthonous
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019