Source : Webster's Revised Unabridged Dictionary (1913)

Peripteral \Pe*rip"ter*al\, a. [Gr., fr. ? + ? feather, wing,
   row of columns.] (Arch.)
   Having columns on all sides; -- said of an edifice. See
   {Apteral}.

Source : WordNet®

peripteral
     adj : having columns on all sides [ant: {apteral}]