INTERLACED ARCHES. Arches which span twice the width of the space between the piers of an arcade, so that each arch crosses two others. In some cases the arches interlace, their mouldings crossing alternately over and under those of the other arches ; in some cases the whole is on one plane and the arches merely intersect. Interlacing arches are common in Romanesque work (see BYZANTINE AND ROMANESQUE ARCHITECTURE), espe cially Norman, and also in English Gothic (see Gothic ture), and are also occasionally used in Moorish work, as in the great mosque at Cordova (8th century). For illustrations see