Definitions for gypsum board
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Random House Webster's College Dictionary
gyp′sum board`(n.)
plasterboard.
Category: Building Trades
Princeton's WordNet
plasterboard, gypsum board(noun)
wallboard with a gypsum plaster core bonded to layers of paper or fiberboard; used instead of plaster or wallboard to make interior walls
Wiktionary
gypsum board(Noun)
panels used for drywall construction
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"gypsum board." Definitions.net. STANDS4 LLC, 2013. Web. 20 May 2013. <http://www.definitions.net/definition/gypsum board>.

