The Collaborative International Dictionary of English v.0.48:

Distyle \Dis"tyle\, a. [Gr. di- = di`s- twice + ? pillar: cf. F.
   distyle.] (Arch.)
   Having two columns in front; -- said of a temple, portico, or
   the like.
   [1913 Webster]

   Distyle in antis, having columns between two ant[ae]. See
      Anta.
      [1913 Webster]