Obliteration of an existing road would involve; removal of all culverts, establishing permanent drainages and recontouring of the road surface
A synergistic phenomenon of both particle silting and polar adhesion When water and silt particles co-exist in a fluid containing long-chain molecules, the tendency for valves to undergo obliteration increases
1) A cancellation intended solely to deface a stamp-also called a killer 2) An overprint intended to deface a portion of the design of a stamp, such as the face of a deposed ruler
the ability of an opaque overprint to hide completely the color underneath; also sometimes referred to as obliterating power