Definition:

Celadon (adjective) refers to a particular type of high-fire reduction glaze developed in China and Korea, perhaps as early as the 9th century AD. Celadon glazes are glossy, transparent glazes that often crackle and have a range of colors. Most often seen in a variety of shades of green reminiscent of jade, celadons can also be seen in blue, gray, white and yellow.

Celadon can also be used as a noun, referring either to the class of glazes, a glaze within that class, or ware that is decorated with the glaze.


Examples:

Celadon glazes can change colors depending on thickness and clay body color. (adjective)

The Korean celadons of the 12th and 13th centuries are spectacular examples of ceramic art and craftsmanship. (noun)