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foam glass
noun
cellular glass made by fusing powdered glass with carbon particles or other gas-generating material, used chiefly for industrial purposes.
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Word History and Origins
Origin of foam glass1
First recorded in 1945–50
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
They different only in the base material - foam, glass or ceramic.
From Washington Times
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