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).
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