Dictionary:

Acadian

  (ə-kā'dē-ən)

Of or relating to Acadia or its people, language, or culture.

1. 1. One of the early French settlers of Acadia.
   2. A descendant of these settlers, especially a Cajun.
2. A dialect of French spoken by the Acadians.

The noun has one meaning:

Meaning #1: an early French settler in the Maritimes