beaverboard

Etymology
, probably from Beaver Manufacturing Company, probably from. Originally a trademark.

Noun

 * 1) A form of fiberboard made of wood pulp compressed into sheets.
 * 2) * 1957, J. D. Salinger, "Zooey", in, 1961, Franny and Zooey, 1991 LB Books edition, page 176,
 * Instead, he turned around and deliberately faced a sheet of what had once been snow-white beaverboard that was nailed uncompromisingly to the back of the door.

Translations

 * Irish: béabharchlár