/ɔːˈθɪndʒɪnəs/; /ɔːˈθɪndʒɪnəs/ (orth-ij-uh-JEN-uh-s)

Definitions

1. adjective

Originating or produced in a particular place or environment, especially a native species.

“The authigenous plants and animals found in the Amazon rainforest are unique to that ecosystem.”