Source : Webster's Revised Unabridged Dictionary (1913)

Catalan \Cat"a*lan\, a.
   Of or pertaining to Catalonia. -- n. A native or inhabitant
   of Catalonia; also, the language of Catalonia.

   {Catalan furnace}, {Catalan forge} (Metal.), a kind of
      furnace for producing wrought iron directly from the ore.
      It was formerly much used, esp. in Catalonia, and is still
      used in some parts of the United States and elsewhere.