obliteration

Etymology

noun

1. The total destruction of something.
   Stark before-and-after images reveal the obliteration of Bakhmut [title] 2023-05-18, Matt Fidler, “Stark before-and-after images reveal the obliteration of Bakhmut”, in The Guardian, →ISSN
2. The concealing or covering of something.
3. The cancellation, erasure or deletion of something.
   Because he refused to protect his brother's name from obliteration, he acquires a derogatory nickname. 2001, David L. Lieber, Jules Harlow, Etz Hayim: Torah and Commentary, page 1134
4. (medicine) The cancellation of the function, structure, or both of a vessel or organ; for example, the occlusion of the lumen of a duct, blood vessel, or lymphatic vessel, be it solely functional (as when squeezed by nearby mass effect or inflammation) or both structural and functional (as when clogged with thrombus, embolus, or fibrosis).