re·gion·al·ize [ rjən'l z ](past and past participlere·gion·al·ized, present participlere·gion·al·iz·ing, 3rd person present singularre·gion·al·iz·es)
transitive verb
Definition:
1. divide something into regions: to divide an area into administrative regions
2. allocate something to regions: to allocate something to regional administrations