1) Art movement 2) Baroque art 3) Decorative art 
artificial rockwork or similar ornament
• (n.) The rococo system of scroll ornament, based in part on the forms of shells and water-worn rocks. • (n.) Artificial rockwork made of rough stones and cement, as for gardens.
An ornament style from the rococo period consisting of an abstract shell or leaf motif.
in Western architecture and decorative arts, 18th-century style featuring elaborately stylized shell-like, rocklike, and scroll motifs. Rocaille is ... [1 related articles]
Ro`caille' noun [ French Confer Rock a stone.] (Art) (a) Artificial rockwork made of rough stones and cement, as for gardens. (b) The rococo system of scroll ornament, based in part on the forms of shells and water-worn rocks.