Dictionaryau•toch•thonPronunciation: (ô-tok'thun), [key] —n., —pl. -thons, -tho•nesPronunciation: (-thu-nēz"). [key] 1. an aboriginal inhabitant. 2. Ecol.one of the indigenous animals or plants of a region. 3. Geol.a geological formation formed in the region where found. Cf. allochthon. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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