obliteration

The act of obliterating or effacing; a blotting out or wearing out; effacement; extinction.

In entomology, the state of being obliterate; also, an obliterated part of a suture, margin, etc.

In pathology, the closure of a canal or cavity of the body by adhesion of its walls.

The act of obliterating, or the state of being obliterated; extinction.

The total destruction of something.