pressboard

/ˈprɛsˌbɔrd/
noun
  1. A stiff, smooth, durable material made by compressing layers of paper or fiber, often used for book covers, furniture backs, or office supplies.
    • She used a sheet of pressboard to make a backing for the picture frame.
    • The notebook had a sturdy pressboard cover that protected the pages.
    • The filing cabinet was made of metal, but the dividers inside were pressboard.
  2. A type of fiberboard used in construction or packaging, similar to hardboard or particle board.
    • The desk was constructed from pressboard, so it was lightweight but not very strong.
    • The shelves were made from cheap pressboard that started to sag under the weight of the books.
    • They packed the fragile items in a box lined with pressboard for extra protection.
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