What does «araucanista» mean in Spanish?

Person who studies the language and customs of the Araucanians.

Examples of use in Spanish: "realizan actividades sociales araucanistas".

"Juan Beniga fue un notable araucanista".
Mapudungun philologist.

Examples of use in Spanish: "el distinguido lingüista y gran araucanista Dr. Rodolfo Lenz".
Related to the Araucanians. "In the folklore and music the presence of Araucanian traits can be noticed".