Although atrial fibrillation itself usually isn't life-threatening, it is a serious medical condition that sometimes requires emergency treatment. It may lead to complications. Atrial fibrillation can lead to blood clots forming in the heart that may circulate to other organs and lead to blocked blood flow (ischemia).
Fiberboard (American spelling) or fibreboard (Commonwealth spelling) is a type of engineered wood product that is made out of wood fibers. Types of fiberboard (in order of increasing density) include particle board, medium-density fiberboard, and hardboard.Fiberboard is sometimes used as a synonym for particle board, but particle board usually refers to low-density fiberboard.or pieces that will be visible, a veneer of wood is often glued onto fiberboard to give it the appearance of conventional wood. Fiberboard is also used in the auto industry to create free-form shapes such as dashboards, rear parcel shelves, and inner door shells.
Noun. 1. wallboard-a wide flat board used to cover walls or partitions; made from plaster or wood pulp or other materials and used primarily to form the interior walls of houses. dry wall, drywall. beaver board-a light wallboard made of compressed wood pulp.allboard. n. 1. (Building) a thin board made of materials, such as compressed wood fibres or gypsum plaster, between stiff paper, and used to cover walls, partitions, etc. (ËwÉlËbÉrd, -ËboÊrd).