Source : Webster's Revised Unabridged Dictionary (1913)

Adriatic \A`dri*at"ic\, a. [L. Adriaticus, Hadriaticus, fr.
   Adria or Hadria, a town of the Veneti.]
   Of or pertaining to a sea so named, the northwestern part of
   which is known as the Gulf of Venice.

Source : WordNet®

Adriatic
     n : an arm of the Mediterranean between Slovenia and Croatia and
         Montenegro and Albania on the east and Italy on the west
         [syn: {Adriatic Sea}]