Americanist

Short definition from Wiktionary

Noun

1. 1
   Somebody who favors the values of the USA.
2. 2
   An expert in the study of America.
3. 3
   A proponent of the Americanist phonetic notation.

Adjective

1. 1
   Favoring the values of the USA.
2. 2
   Of or relating to a phonetic notation developed for transcription of Native American and European languages. See Americanist phonetic notation.