pasteboard n 1: stiff cardboard made by pasting together layers of paper
Pasteboard \Paste"board`\, n. 1. A stiff thick kind of paper board, formed of several single sheets pasted one upon another, or of paper macerated and pressed into molds, etc. [1913 Webster] 2. (Cookery) A board on which pastry dough is rolled; a molding board. [1913 Webster]