Masonite

(mā′sən īt′)

☆

a kind of hardboard made from pressed wood fibers, used as building material, insulation, etc.

Origin: after W. H. Mason (1877-1947?), U.S. engineer

noun

such hardboard

See Masonite in American Heritage Dictionary 4

A trademark used for a type of fiberboard employed for insulation, paneling, or partitions.

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