PLASTERBOARD
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
Source: WordNet® 3.1
Etymology
Noun
plasterboard (plural plasterboards)
A construction material consisting of a rigid panel of several layers of fibreboard or paper bonded to a gypsum core.
Synonyms
• drywall
Verb
plasterboard (third-person singular simple present plasterboards, present participle plasterboarding, simple past and past participle plasterboarded)
(transitive) To fit or reinforce with plasterboard.
Source: Wiktionary