arostyle (1)

& a. [In Fr. aréostile; Lat. a reo stylos; Gr. ἀραιόστυλος ( araiostulos ): ἀραιός ( αταίος ) = thin, narrow, slight, with intervals; στύλος ( stulos ) = a pillar with columns far separated.] ( Vitruvius.) A. As substantive : Arch .: A kind of intercolumniation in which the pillars are so wide apart that the intermediate spaces are each upwards of three diameters of the column. This constitutes one of the five kinds of intercolumniation described by Vitruvius. B. As adjective: Pertaining to the intercolumniation now described.