noun
gypsum board; drywall; plasterboard
Standard building material; used in interior walls and ceilings.
この部屋の壁は石膏ボードでできている。
The walls of this room are made of drywall.
Alternative spelling using こう for 膏; less common than 石膏ボード.
Compound of 石膏 (せっこう, 'gypsum') + ボード ('board'), a loanword from English.