Wiktionary
gatorboard
alt. A rigid but lightweight sheet material composed of a layer foam between thin layers of wood pulp vaneer. Available in a variety of thicknesses from 1/8" - 1". Commonly used for mounting photgraphs and graphics. n. A rigid but lightweight sheet material composed of a layer foam between thin layers of wood pulp vaneer. Available in a variety of thicknesses from 1/8" - 1". Commonly used for mounting photgraphs and graphics.