noun, plural trac·er·ies.
Examples from the Web for tracery
The tracery of a rose window over the door of the North aisle, is gone, and perhaps it is difficult to decide what it meant.Guernsey Pictorial Directory and Stranger's Guide|Thomas Bellamy
The arches of the windows in the aisles are Early Decorated, the tracery is modern.The Cathedrals of Great Britain|P. H. Ditchfield
The tracery of the windows is unusual in design, and is similar to that in a window of the chapel at Merton College, Oxford.Bell's Cathedrals: The Cathedral Church of Gloucester [2nd ed.]|H. J. L. J. Mass
Cusp—an ornament used in the tracery of windows, screens, etc., to form foliation.Scottish Cathedrals and Abbeys|Dugald Butler and Herbert Story
From others, as at Saint German, the tracery has been cut away altogether.Sketches of Travel in Normandy and Maine|Edward A. Freeman