n. pl. au·toch·thons or au·toch·tho·nes (-thə-nēz′)
1. One that originated or was formed where it is found, especially a rock formation that has not been displaced.
2. One of the earliest known inhabitants of a place; an aborigine.
3. Ecology An indigenous plant or animal.
[Greek autokhthōn : auto-, auto- + khthōn, earth; see dhghem- in the Appendix of Indo-European roots.]
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