allochthonousPronunciation: /əˈlɒkθənəs/Definition of allochthonous adjective Geology denoting a deposit or formation that originated at a distance from its present position. Often contrasted with autochthonous.Origin: early 20th century: from allo- 'other' + Greek khthōn 'earth' + -ousallochthonous in other Oxford dictionaries Definition of allochthonous in the US English dictionary
