MDF
noun [ U ] uk/ˌem.diːˈef/ us/ˌem.diːˈef/
中密度纤维板（由碎木片压制而成的家具原料，medium-density fibreboard的缩写）
abbreviation for medium-density fibreboard: a type of board made from very small pieces of wood that have been pressed and stuck together, used for making furniture