LEARNit Dictionary
glasspaper
noun
/ˈɡlɑːspeɪpə(r)/
UK
/ˈɡlæspeɪpər/
US
1
thick paper covered with a layer of glass powder to make it rough, which is rubbed against things in order to make them smooth
کاغذ سنباده, سنباده کاغذی