Curvilinear
CURVILINEAR, in architecture, that which is formed by curved or flowing lines; the roofs over the domes and vaults of the Byzantine churches were generally curvilinear. The term is also given to the flowing tracery of the Decorated and the Flamboyant styles.
Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)
