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).

QUIZZES

DIVE INTO THIS BALMY SUMMERTIME SPELLING QUIZ

Do you often fall under the spell of the summer season? See if you can really spell your way through it with this quiz of popular summertime words.
Question 1 of 12
TAKE THE QUIZ TO FIND OUT

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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020