釉 is the glassy coating fired onto ceramics — a defining element of Chinese pottery. Famous historical glazes include
青釉 (qīngyòu, celadon green),
白釉 (báiyòu, white glaze),
黑釉 (hēiyòu, black glaze) and the multicolored
三彩 (sāncǎi) of the Tang dynasty. Jingdezhen porcelain centers its identity on glaze techniques.