The Collaborative International Dictionary
Autochthonal
Autochthonal \Au*toch"tho*nal\, Authochthonic \Au`thoch*thon"ic\, Autochthonous \Au*toch"tho*nous\, a. Aboriginal; indigenous; native.
Wiktionary
autochthonal
a. existing where it was formed or born; native, aboriginal, indigenous
WordNet
autochthonal
adj. 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: autochthonic, autochthonous, endemic, indigenous]
Usage examples of "autochthonal".
The races of man correspond to the great zoological regions, he says, and perhaps they’re autochthonal, like plants, originating where they’re found.