in architecture, is a molding of double curvature, concave at one end, convex at the other. When the concave part is uppermost, it is called a cyma recta; but if the convex portion is at the top, it is called a cyma reverse, When the crowning molding of an entablature is of the cyma form, it is called a cymatium.

a moulding of the cornice, the outline of which consists of a concave and a convex line; an ogee. picture

a molding having a reverse-curved, ogee-shaped profile.

From the Greek for "wave." A distinctive S-shaped curve incorporated into Queen Anne furniture.

From the Greek for wave- a simply double curve.

Molding which has both a convex and concave curve. Cyma recta is when the double curvature profile has the concave portion protruding past the convex portion. Cyma reversa has the convex portion protruding past the concave portion.