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fire clay

noun

  1. a refractory clay used for making crucibles, firebricks, etc.


fire clay

noun

  1. a heat-resistant clay used in the making of firebricks, furnace linings, etc
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Word History and Origins

Origin of fire clay1

First recorded in 1810–20
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Example Sentences

This mould is then filled with a mixture of one part fire clay, one part ground fire brick and one part fire sand.

The bolts should have a covering of fire-clay to protect them from the action of the fire.

Lute the joint with fire-clay, place the cover on, and bolt it down.

The water is kept from running into the receiver by a ring of damp fire-clay.

Before kindling the furnace, its inner surface is smeared over with a cream-consistenced mixture of fire-clay and water.

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