Definition of "fireclay" [fireclay]

• Alternative spelling of fire clay. (noun)

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• "Sometimes the term fireclay is used only for the clays lying below and between coalseams."
• "To prevent the stove from wearing out rapidly, the firebox, in which the fuel is burned, is lined with a material, such as fireclay, that will withstand great heat."
• "I have been told by cooks who know how to handle them that they produces superior roasts and baked goods thanks to the dry and uniform heat that the heated fireclay gives off (that's also the reasons that pizza from wood burning pizza ovens tastes different from electric ones)."