installations (visual works) <p>Works dating from the 1960s or later that use their exhibition space as part of their design. Demanding a viewer's active engagement, installations are often created by artists in direct opposition to the notion of permanent artwork, or art as a commodity.</p> <p>Source: Art &amp; Architecture Thesaurus</p> <p>http://vocab.getty.edu/page/aat/300047896</p>