undulating tracery

flowing tracery, curvilinear tracery, undulating tracery

flowing tracery: Little St. Mary's, Cambridge (c. 1350)
Tracery in which continuous curvilinear patterns (largely ogees) dominate. A characteristic feature of the Decorated and Flamboyant styles.
References in periodicals archive ?
Undulating tracery on the little arches, and the corbels and valances in the living room add grace to the space.