putrefaction

This term carries a heavy, visceral connotation of biological collapse and organic failure. It evokes a sensory experience of stench and liquefaction, making it far more graphic and clinical than a general word like decay. It is most frequently encountered in forensic pathology, archaeology, and biological sciences. While decomposition is a broad umbrella term for any organic breakdown, putrefaction specifically refers to the anaerobic breakdown of proteins by bacteria. It suggests a stage of rot that is active, wet, and offensively odorous, rather than a dry or sterile process.