n. A board made by compressing layers of paper together and drying them.
the GNU version of the Collaborative International Dictionary of English
n. A kind of highly sized rag paper or board, sometimes containing a small admixture of wood pulp; -- so called because used originally, as now, in presses for pressing and finishing knit underwear.
The Century Dictionary and Cyclopedia
n. Millboard; pasteboard.
n. An ironing-board; a board used in pressing cloth.
n. plural See press-boards.
Word Usage
"I know there’s a similar thing made with pressboard, which is, i think what Romero uses on the Fish Camp and press-board typically uses formaldehyde."