Used to describe foul smells and visual disgust; implies something undesirable and repulsive. They couldn't ignore the strong putrefaction coming from the abandoned building.
Pro Tip 2/3
Non-Living Things
Can also refer to non-biological substances, like food, decaying. Left outside, the pumpkin underwent putrefaction rapidly.
Pro Tip 3/3
Metaphorical Usage
Sometimes used metaphorically to describe moral or social decay. The putrefaction of the institution's values became evident over the years.