| any of various composition boards formed from small particles of wood, as flakes or shavings, tightly compressed and bonded together with a resin. |
par·ti·cle·board or particle board  (pär'tĭ-kəl-bôrd', -bōrd')  n. A structural material made of wood fragments, such as chips or shavings, that are mechanically pressed into sheet form and bonded together with resin. |