The term 'THIN COVERING' can be broken down into two words, 'FILM' and 'VENEER'. FILM is a thin layer of material, usually plastic or celluloid, that is used to capture images in photography and motion pictures. VENEER is a thin layer of wood or other material that is applied to the surface of an object to give it a more attractive appearance. Together, these two words describe a thin covering that can be used to enhance the look of an object.