Showing results for allochthon. Search instead for mulloidichthys.

allochthon

American

[uh-lok-thuhn, -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.

First recorded in 1940–45; back formation from allochthonous

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023