Source : Webster's Revised Unabridged Dictionary (1913)

Appian \Ap"pi*an\, a. [L. Appius, Appianus.]
   Of or pertaining to Appius.

   {Appian Way}, the great paved highway from ancient Rome
      trough Capua to Brundisium, now Brindisi, constructed
      partly by Appius Claudius, about 312 b. c.

Source : WordNet®

Appian Way
     n : an ancient Roman road in Italy extending south from Rome to
         Brindisi; begun in 312 BC