Monopteral

a. [Gr. μονόπτερος, with but one wing, with a row of pillars only, from μόνος, alone, only, and πτερόν, feather, wing; Fr. monoptere.] (Arch.) With but one wing;—applied to a temple or circular inclosure of columns, without a cell.

n. (Arch.) A circular temple consisting of a roof supported on columns, without any cell.