Source : Webster's Revised Unabridged Dictionary (1913)

Delimitation \De*lim`i*ta"tion\, n. [L. delimitatio: cf. F.
   d['e]limitation.]
   The act or process of fixing limits or boundaries;
   limitation. --Gladstone.

Source : WordNet®

delimitation
     n : a line that indicates a boundary [syn: {boundary line}, {border},
          {borderline}, {mete}]