Gothic ornamental stonework carved to form geometric patterns, most commonly trefoils and quatrefoils. In the earliest examples of Gothic architecture, tracery was confined mainly to the upper parts of pointed windows. In later Gothic structures, tracery can also be found in other parts of the building, including buttresses, gables, spires, interior walls, and choir screens.
Historical dictionary of Renaissance art. Lilian H. Zirpolo. 2008.