Source : Webster's Revised Unabridged Dictionary (1913)

Moorish \Moor"ish\, a. [See 1st {Moor}, and cf. {Morris},
   {Moresque}.]
   Of or pertaining to Morocco or the Moors; in the style of the
   Moors.

   {Moorish architecture}, the style developed by the Moors in
      the later Middle Ages, esp. in Spain, in which the arch
      had the form of a horseshoe, and the ornamentation
      admitted no representation of animal life. It has many
      points of resemblance to the Arabian and Persian styles,
      but should be distinguished from them. See Illust. under
      {Moresque}.

Source : WordNet®

Moorish architecture
     n : a style of architecture common in Spain from the 13th to
         16th centuries; characterized by the horseshoe (Moorish)
         arch [syn: {Moorish}]