D defs.my
Entry 1 sense Webster, 1913

Pressboard

/prĕs'-bôrdˌ/ · Press·board · IPA /prˈɛsbˌɔrd/
01 n. A kind of highly sized rag paper or board, sometimes containing a small admixture of wood pulp; -- so called because used originally, as no…
  1. 1.
    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.