Regionaler
Regionaler is the comparative form of the German adjective regional. It is used to express that something is more regional or more closely tied to a specific region in comparison with another thing. As a modifier, regionaler declines like other adjectives in German, with endings that depend on gender, number, and case. For example, ein regionaler Unterschied (singular, masculine, nominative), regionale Unterschiede (plural), or einen regionalen Unterschied (singular, masculine, accusative). In comparative constructions the form signals a higher degree of regionality, as in Der regionalere Fokus der Studie liegt auf ländlichen Gebieten; regionalere Unterschiede zeigen sich zwischen Stadt- und Landregionen.
In practice, regionaler is most common in formal or technical writing, where authors want to specify that
Etymology and related terms: regional derives from the Latin regionem via French and other European languages,
See also: regional, Regionalität, Regionalisierung, regionalism.