Rotting
Part of speech: verb
Definition: To suffer decomposition due to biological action, especially by fungi or bacteria.
Example sentence: All you got to do is look around. This country's getting worse and worse and more and more immoral, and we're rotting from within.
Putrefaction
Part of speech: noun
Definition: the act of causing to rot; the anaerobic splitting of proteins by bacteria and fungi with the formation of malodorous, incompletely oxidized productsrotted materialthe state of being rotted