Cymatium, the uppermost molding at the top of the

cornice In architecture, a cornice (from the Italian ''cornice'' meaning "ledge") is generally any horizontal decorative moulding that crowns a building or furniture element—for example, the cornice over a door or window, around the top edge of a ...

in the

classical order An order in architecture is a certain assemblage of parts subject to uniform established proportions, regulated by the office that each part has to perform. Coming down to the present from Ancient Greek and Ancient Roman civilization, the arch ...

, is made of the s-shaped

cyma Cyma may refer to either: * An S-shaped decorative molding, used in the cymatium of Greek architecture * CYMA – Canadian Youth Mission to Armenia, a Canadian-run humanitarian program * CYMA (software), accounting packages * Cyma Watches, a Swiss ...

molding (either ''cyma recta'' or ''cyma reversa''), combining a concave

cavetto A cavetto is a concave moulding with a regular curved profile that is part of a circle, widely used in architecture as well as furniture, picture frames, metalwork and other decorative arts. In describing vessels and similar shapes in pottery, ...

with a convex

ovolo The ovolo or echinus is a convex decorative molding profile used in architectural ornamentation. Its profile is a quarter to a half of a more or less flattened circle. The 1911 edition of ''Encyclopædia Britannica'' says:adapted from Ital. ''u ...

. It is characteristic of

Ionic columns The Ionic order is one of the three canonic orders of classical architecture, the other two being the Doric and the Corinthian. There are two lesser orders: the Tuscan (a plainer Doric), and the rich variant of Corinthian called the composite ...

and can appear as part of the

entablature An entablature (; nativization of Italian , from "in" and "table") is the superstructure of moldings and bands which lies horizontally above columns, resting on their capitals. Entablatures are major elements of classical architecture, and ...

, the epistyle or

architrave In classical architecture, an architrave (; from it, architrave "chief beam", also called an epistyle; from Greek ἐπίστυλον ''epistylon'' "door frame") is the lintel or beam that rests on the capitals of columns. The term can ...

, which is the

lintel A lintel or lintol is a type of beam (a horizontal structural element) that spans openings such as portals, doors, windows and fireplaces. It can be a decorative architectural element, or a combined ornamented structural item. In the case of w ...

beam Beam may refer to: Streams of particles or energy *Light beam, or beam of light, a directional projection of light energy **Laser beam *Particle beam, a stream of charged or neutral particles **Charged particle beam, a spatially localized grou ...

that rests on the

capital Capital may refer to: Common uses * Capital city, a municipality of primary status ** List of national capital cities * Capital letter, an upper-case letter Economics and social sciences * Capital (economics), the durable produced goods used f ...

s of

column A column or pillar in architecture and structural engineering is a structural element that transmits, through compression, the weight of the structure above to other structural elements below. In other words, a column is a compression member. ...

s, and the capital itself. Often the cymatium is decorated with a

palmette The palmette is a motif in decorative art which, in its most characteristic expression, resembles the fan-shaped leaves of a palm tree. It has a far-reaching history, originating in ancient Egypt with a subsequent development through the art o ...

egg-and-dart Egg-and-dart, also known as egg-and-tongue, egg-and-anchor, or egg-and-star, is an ornamental device adorning the fundamental quarter-round, convex ovolo profile of moulding, consisting of alternating details on the face of the ovolo—typicall ...

ornament on the surface of the molding.

The heights of the parts of the capital are to be so regulated that three of the nine parts and a half, into which it was divided, lie below the level of the astragal on the top of the shaft. The remaining parts are for the cymatium, abacus, and channel. The projection of the cymatium beyond the abacus is not to be greater than the size of the diameter of the eye f the volute

In the case of a concave-convex profile, a distinction is made between cyma recta and cyma reversa, with the cyma reversa, the inverted and therefore hanging cyma, being the usual form. Originally, the individual types of kymatia were linked to the corresponding individual building codes and the associated ornament systems and in this way could be clearly distinguished from one another. In the Hellenistic and Roman periods, however, the types mixed, at the same time further refinement and embellishment with numerous details (acanthus, palmettes, medallions) took place.

References

Columns and entablature {{Architecturalelement-stub

See also

References