1 (plural norteños /-ɒs/) an inhabitant or native of northern Mexico.
2 (also norteña /nɔːˈtɛnjə/) [mass noun] a style of folk music, associated particularly with northern Mexico and Texas, typically featuring an accordion and using polkas and other rhythms found in the music of central European immigrants.
Spanish, literally 'northerner'
norteño in other Oxford dictionaries
Definition of norteño in the US English dictionary