porcelain Definition

a hard, fine-grained, sonorous, nonporous, and usually translucent and white ceramic ware that consists essentially of kaolin, quartz, and a feldspathic rock and is fired at a high temperature —called also hard-paste porcelain, true porcelain

soft-paste porcelain

a fired-on opaque glassy coating on metal

porcelain

a translucent ceramic ware fired at a low temperature that was produced in Europe during the 16th through 18th centuries in imitation of hard-paste porcelain; also : an article of soft-paste porcelain

porcelain

low-fired porcelain containing a frit and steatite produced at Worcester, England, from about 1751 —called also Worcester china, Worcester porcelain