peripteral

from WordNet (r) 3.0 (2006)

peripteral
    adj 1: having columns on all sides [ant: {apteral}]

from The Collaborative International Dictionary of English v.0.48

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}.
   [1913 Webster]