The Collaborative International Dictionary
Autochthonal \Au*toch"tho*nal\, Authochthonic \Au`thoch*thon"ic\, Autochthonous \Au*toch"tho*nous\, a. Aboriginal; indigenous; native.
Douglas Harper's Etymology Dictionary
"native, indigenous," 1845, from autochthon + -ous.
Wiktionary
a. native to the place where found; indigenous.
WordNet
adj. of rocks, deposits, etc.; found where they and their constituents were formed [ant: allochthonous]
originating where it is found; "the autochthonal fauna of Australia includes the kangaroo"; "autochthonous rocks and people and folktales"; "endemic folkways"; "the Ainu are indigenous to the northernmost islands of Japan" [syn: autochthonal, autochthonic, endemic, indigenous]
Usage examples of "autochthonous".
Important to get serious xenological survey of original autochthonous cultures.
It was planned by one of the autochthonous inhabitants with the most ingenious combination of inconveniences that the natural man could educe from his original perversity of intellect.
Rey had little appreciation for the intelligence of his thralls, feeling certain that seldom, if ever, there existed a thought in any of their heads that was not an autochthonous one, so placed there by himself.
The War was not against savages, or aborigines of spoil lands and thus does not come into the same classification as the Australian war against the autochthonous tribes of Tasmania, when the victims were hunted down like rabbits to total extermination.
The autochthonous scavenged skeleton was preserved in mangrove deposits, raising the possibility that titanosaurids and their predators habitually entered such environments.