1) Areostyle 
Araeostyle (Gr. αραιος, `weak` or `widely spaced`, and στυλος, `column`) is an architectural term for the intercolumniation given to those temples where the columns had only timber architraves to carry. ...
• (a. & n.) See Intercolumniation.
having an intercolumniation of four diameters. See illus. under