prostyle

from WordNet (r) 3.0 (2006)

prostyle
    adj 1: marked by columniation having free columns in a portico
           only across the opening to the structure [syn:
           {prostyle}, {pseudoprostyle}]

from The Collaborative International Dictionary of English v.0.48

Prostyle \Pro"style\, a. [L. prostylus, Gr. ?; ? before + ?
   pillar, column: cf. F. prostyle.] (Arch.)
   Having columns in front. -- n. A prostyle portico or
   building.
   [1913 Webster]