Pronunciation: (rē'ju-nl),[key] —adj. 1. of or pertaining to a region of considerable extent; not merely local: a regional meeting of the Boy Scouts. 2. of or pertaining to a particular region, district, area, or part, as of a country; sectional; local: regional differences in pronunciation. 3. Anat.of, pertaining to, or localized in a particular area or part of the body.
4. having, exhibiting, or characterized by regionalism: He writes regional novels.
—n. 1. Often, regionals. a regional competition or tournament: The basketball team won the regionals. 2. a regional company, branch, stock exchange, etc.: Regionals are getting stiff competition from the national firms.