1. autochthonous

of rocks, deposits, etc.; found where they and their constituents were formed

2. autochthonal, autochthonic, autochthonous, endemic, indigenous

originating where it is found

Example Sentences:
'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'

Synonyms

• autochthonal
• autochthonic
• endemic
• indigenous