#structural ornament
- Acroterium — A learned technical form or direct transliteration of the Latin term acroterium; it represents the small plinth or decorative finishing element placed at key points of aclassical pediment to support statues or plant ornaments. Its structure ensures the correct weight distribution of decorative sculptures onto the building's entablature support.
- Arcading — A decorative or structural element consisting of a row of small arches, either blind or open, supported by small columns, corbels, or pilasters, frequently used in medieval Romanesque and Gothic architecture to ornament and rhythm the facades or exterior friezes of monumental buildings. This linear assembly provides a distinct geometric relief and contributes to the aesthetic articulation of massive masonry.
- Archivolt — A decorative element or prominent ornamental molding that frames and emphasizes the exterior face of an arch or a vault along its curvature. In classical, Romanesque, and Gothic architecture, the archivolt is often composed of several artistically carved concentric bands, serving the visual role of highlighting the opening of a portal or a monumental window.