2. A reference to a disease originating in the part of the body where it was found: The autochthonous tumor was located and examined in Janes's left breast, the exact spot where it had developed.
The doctor told Mary that her heart beat was autochthonous, thus inside her body, and not stimulated by a machine outside her body.
3. In psychology, of or pertaining to ideas that arise independently of the individual's own train of thought and seem instead to have some alien or external agency as their source: Some people suffer from autochthonous disorders such as schizophrenia or from some kind of obsession.
There's an enormous difference between Africa and the Caribbean due to the fact that the Caribbean has no autochthonous population.
All of its people are immigrants, either from the top of the society, the youngest sons, and so forth; or blacks who were brought there through the slave trade. The only autochthonous population, the Caribs, has completely disappeared.