Abura-age-de. Glaze that looks like deep-fried toufu; found on Ki-Seto ware.
Aka-e. Polychrome overglaze, usually red in tone. This style of overglaze painting was introduced to Japan directly from China, and is used primarily with porcelains (Imari, Kakiemon, Nabeshima and Kutani).
Ame-yu. Ame means amber and yu means glaze. Ame-yu can be translated as amber (caramel) glaze - it contains iron oxide or manganese oxide with feldspar. Often seen on chawan (tea bowls) and mizusashi (water jars). For more, see Ohi Ware.
Bidoro. "Vitrified glass" taken from the Portuguese word for glass. Found mainly on Iga wares. Also sometimes called a tombo no me (or dragonfly's eye).
Celadon. Thick glaze used with celadon (seiji) ware.
Dobai. Wood-ash glaze.
Goma. "Sesame" colored natural ash glaze from pine ash that fuses and melts on a pot. Some goma are called nagare-goma (flowing goma) or tobi-goma (spotted flying goma). Mainly found on Bizen.
Go-sai. In Kutani pottery, the five colors (go-sai) reign supreme: red, blue, yellow, purple and green.
Gosu. Cobalt blue glaze.
Hai-yu Yohen. Ash-glazed ware. See "Yohen" below.
Iro-e. Overglaze enamel. Used often with porcelain.
Kairagi. Crawling of the glaze - mainly seen on Karatsu and Hagi wares around the kodai (foot).
Kaki-yu. Persimmon colored glaze.
Kinrande. Gold enameled porcelain.
Kuro-yu. Black colored glaze.
Lead Glaze. Transparent glassy glaze using lead oxide.
Multi-color overglaze enamelling. In the 17th century, Sakaeda Kakiemon perfected a technique for multi-color overglaze enamelling. Family records say Sakaeda Kakiemon made the first overglaze colored enamel porcelain in Japan sometime around 1647.
Shinsha. Red copper glazes. Also called "yuriko."
Shizen-yu. Natural ash glaze.
Tenmoku. Iron glaze, sometimes with oil spots known as yuteki tenmoku.
Tetsu-yu. Iron glaze.
Yohen or Youhen. Natural ash glaze. Literally means "changed by the fire/flame." Yohen refers to changes in the kiln that cause the glaze to run during firing. Sometimes this is called a "hares-fur" effect. Yohen also refers to the build-up of ash on the kiln floor and the natural glazing brought about by this ash, resulting in deep blues, browns, and reds -- often seen on yakishime ware, like Bizen.
Yuri-kinsai. Underglaze gold decoration porcelain. Designated in the 1950s as a new glazing technique. The main feature is a highly transparent overglaze on gilded porcelain.
Yuriko. Red copper glazes. Also called "shinsha."
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