Source : Webster's Revised Unabridged Dictionary (1913)

Sectionalism \Sec"tion*al*ism\, n.
   A disproportionate regard for the interests peculiar to a
   section of the country; local patriotism, as distinguished
   from national. [U. S.]

Source : WordNet®

sectionalism
     n : a partiality for some particular place [syn: {provincialism},
          {localism}]