facetted

Facetted is the past participle adjective of facet and is commonly used in British English, with the American variant faceted. The term describes something that is segmented into flat surfaces or facets, or something with multiple aspects or sides. In geometry and design, a facetted object has surfaces that meet along straight edges to form a polyhedral shape, often created to alter how light interacts with the surface.

In gemology and mineralogy, facetted refers to stones cut with multiple flat faces to enhance brilliance, color, and symmetry. The arrangement and number of facets affect light reflection and dispersion, and the term is commonly applied to diamonds, emeralds, sapphires, and other cut gemstones. In architecture and decorative arts, facetted forms appear as facetted domes, prisms, or surfaces that catch light differently from various angles.

In information technology and library science, facetted describes a method of organizing data by multiple independent attributes, or facets. Faceted classification enables classification systems to support multiple simultaneous perspectives, such as topic, author, date, or format. Faceted search is a search interface pattern that lets users filter results by selecting values from several facets, often shown as a panel of options.

Etymology: from facet, derived from Old French facette, diminutive of face, ultimately from Latin facies. Variants include faceted (American English) and facetted (British English).