Definitions
a heat-resistant clay
Used in a sentence
“On the descent the line is often in cuttings; some are high, such as at Scarcroft, where a cut through firestone and fireclay was necessary, and near Bardsey, where the line threads a deep tree-lined gorge.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Refractory earth”8 letters
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