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fireclay

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noun fire·clay \ˈfī(-ə)r-ˌklā\

Definition of fireclay

  1. :  clay capable of withstanding high temperatures that is used especially for firebrick and crucibles

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First Known Use of fireclay

1686

Learn More about fireclay

  1. See words that rhyme with fireclay Britannica.com: Encyclopedia article about fireclay

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