Biscayan dialect

Biscayan, sometimes Bizkaian (Basque:Bizkaiera, Spanish:Vizcaino) is a dialect of the Basque language spoken mainly in Biscay, one of the provinces of the Basque Country of Spain.

It is named as Western in the Basque dialects' classification drawn up by linguist Koldo Zuazo, since it is not only spoken in Biscay but also extends slightly into the Northern fringes of Alava and deeper in the Western part of Gipuzkoa. The dialect's territory bears great similarity to that of the Caristii tribe, as described by Roman authors.