Smart Definition
Etymology
Pronunciation
regionalismo
regionalism
regional
relating to a region
+
-ismo
ideology or system suffix
Regionalismo means regionalism and can be thought of as regional0 (relating to a region0) + -ismo1 (ideology or system1), forming a system or ideology related to regions.
noun
  1. regionalism
    A political or cultural movement promoting the interests of a specific region
    El regionalismo es fuerte en algunas partes del país. // Regionalism is strong in some parts of the country.