
1) Cyma 2) Molding 3) Moulding
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https://www.crosswordclues.com/clue/cymatium

1) Cyma
Found on
https://www.crosswordclues.com/clue/cymatium

Cymatium molding appears at the top of the cornice in the classical order, and made of the s-shaped cyma molding (either cyma recta or cyma reversa). It is characteristic of Ionic columns and can appear as part of the entablature, the epistylium, and the capital. Often decorated with a palmette or egg-and-dart ornament on the surface of the moldin...
Found on
http://en.wikipedia.org/wiki/Cymatium
[Septa] Cymatium (Septa) pileare, common name the hairy triton, is a species of medium-sized predatory sea snail, a marine gastropod mollusk in the family Ranellidae, the tritons. ==Subspecies== ...
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http://en.wikipedia.org/wiki/Cymatium_(Septa)_pileare
[gastropod] Cymatium is a genus of small to large predatory sea snails, marine gastropod mollusks in the family Ranellidae, the tritons. This genus has numerous species, perhaps as many as 100, some of which have a worldwide distribution. The genus has been divided into at least 10 subgenera. Some authors have elevated those subgenera, givi...
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http://en.wikipedia.org/wiki/Cymatium_(gastropod)

• (n.) A capping or crowning molding in classic architecture.
Found on
http://thinkexist.com/dictionary/meaning/cymatium/

A small cyma is called a cymatium. When a cyma is used as the crown moulding of an entablature, it is called a cymatium.
Found on
http://www.doric-column.com/glossary_classical_architecture.html
Cy·ma'ti·um (sĭ*mā'shĭ*ŭm)
noun [ Latin , from Greek
kyma`tion , dim. of
ky^ma a wave.]
(Architecture) A capping or crowning molding in classic architecture.
Found on
http://www.encyclo.co.uk/webster/C/210

In architecture, a cymatium is a capping or crowning moulding found in classic architecture.
Found on
http://www.probertencyclopaedia.com/browse/TC.HTM

the uppermost member of a classical cornice or of a cornice of similar form: usually a cyma recta in classical examples. Cf. sima. · echinus (def. 2c).
Found on
https://www.infoplease.com/dictionary/cymatium
No exact match found.