Source : Webster's Revised Unabridged Dictionary (1913)

Pandean \Pan*de"an\, a. [From 4th {Pan}.]
   Of or relating to the god Pan.

   {Pandean pipes}, a primitive wind instrument, consisting of a
      series of short hollow reeds or pipes, graduated in length
      by the musical scale, and fastened together side by side;
      a syrinx; a mouth organ; -- said to have been invented by
      Pan. Called also {Pan's pipes} and {Panpipes}.