Putrefaction

noun

1. Decomposition of organic matter, especially protein, by microorganisms, resulting in production of foul-smelling matter.
2. An amount of putrefied matter or an odor produced by such matter.
3. The act or process of putrefying; the decomposition of animal and vegetable substances, attended by the evolution of fetid gases.
4. Putrefied matter.
5. The act or the process of putrefying; the offensive decay of albuminous or other matter.