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English definition of “hardboard”

hardboard

noun [U] uk   /ˈhɑːd.bɔːd/ us    /ˈhɑːrd.bɔːrd/
a substance made of very small pieces of wood, mixed with glue and pressed into large, thin, flat piecesBuilding materials
(Definition of hardboard from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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