- a thin rigid board, in the form of a layer of plaster compressed between two layers of fibreboard, used to form or cover walls
WordReference Random House Learner's Dictionary of American English © 2026
plas•ter•board /ˈplæstɚˌbɔrd/USA pronunciation
n. [uncountable]
WordReference Random House Unabridged Dictionary of American English © 2026- Buildinga material used for insulating or covering walls, made of paper-covered sheets of gypsum and felt.
plas•ter•board
(plas′tər bôrd′, -bōrd′, plä′stər-),USA pronunciation n.
- Buildinga material used for insulating or covering walls, or as a lath, consisting of paper-covered sheets of gypsum and felt.
- plaster + board 1905–10
Collins Concise English Dictionary © HarperCollins Publishers::
plasterboard /ˈplɑːstəˌbɔːd/ n
'plasterboard' also found in these entries (note: many are not synonyms or translations):