Ceramic ware made of a more or less translucent ceramic WordNet 3.0 & Open English WordNet

Porcelain is a ceramic material made by heating substances, generally including materials such as kaolinite, in a kiln to temperatures between 1,200 and 1,400 °C. Wikipedia

Ceramic material. Wikipedia Disambiguation

A white translucent dense ceramic material produced by fusing under high temperature a mixture of feldspar, kaolin, quartz, whiting and other substances. OmegaWiki

A hard white translucent ceramic, originally made by firing kaolin, quartz, and feldspar at high temperatures but now also inclusive of similar artificial materials; also often (figuratively) such a material as a symbol of the fragility, elegance, etc. traditionally associated with porcelain goods. Wiktionary

Hard white translucent ceramic. Wiktionary (translation)