Faience or faïence (/faɪˈɑːs/ or /feɪ-/; French: [fajɑ̃s]) is the conventional name in English for fine tin-glazed pottery on a delicate pale buff earthenware body, originally associated with Faenza in northern Italy.[1] The invention of a white pottery glaze suitable for painted decoration, by the addition of an oxide of tin to the slip of a lead glaze, was a major advance in the history of pottery. The invention seems to have been made in Iran or the Middle East before the ninth century. A kiln capable of producing temperatures exceeding 1,000 °C (1,830 °F) was required to achieve this result, the result of millennia of refined pottery-making traditions. The term is now used for a wide variety of pottery from several parts of the world, including many types of European painted wares, often produced as cheaper versions of porcelain styles

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Significado de faiança - Aulete - Uol
aulete.uol.com.br/faiança‎
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Louça feita de pó de pedra. [F.: Do fr. ant. faiance (atual faïence).] s. f. || louça de barro envernizado ou coberto de um esmalte escuro. || Louça de pó de pedra.

http://aulete.uol.com.br/faiança