1. wallboard with a gypsum plaster core bonded to layers of paper or fiberboard; used instead of plaster or wallboard to make interior walls; [syn: plasterboard, gypsum board]
WordNet (r) 3.0 (2006):
plasterboard
n 1: wallboard with a gypsum plaster core bonded to layers of
paper or fiberboard; used instead of plaster or wallboard
to make interior walls [syn: plasterboard, gypsum
board]