Press"board` (?), 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.

Press"board` (?), 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.