Cyma Reversa
The Cyma Reversa, like the Cyma Recta, is a curve of double flexure, and is headed with a fillet one-third to one-fourth the total height. The projection is equal to the height of curved profile.
The Cyma Reversa is employed in the cornice of the Doric order as a supporting moulding to the dentil course and below the culminating Cavetto. It also occurs in the Capital of the column, where it forms the upper member of the abacus. An apparent contradiction of the theory of employment, which however is justified by the circumstance that the column forms the support for the entablature.
It also occurs as a supporting moulding under the capping of the pedestal, and is used in similar positions in the other orders.