What does putrefaction mean?
Putrefaction names the process in which bacteria, fungi, and other microorganisms break down organic material, causing it to rot, deteriorate, and often develop a strong odor. The term applies especially to animal tissue, food, and waste, although it can also describe the decay of other biological materials. Putrefaction differs from merely becoming stale or wearing out: it is an active biological transformation in which complex organic substances are broken down into simpler compounds. For that reason, the word commonly appears in discussions of food spoilage, forensic science, agriculture, and the preservation of meat. It is more formal and more specifically biological than the general words decay or decomposition. In ordinary speech, putrefaction often carries a distinctly unpleasant association, but scientifically it is an essential natural process that recycles nutrients and returns organic matter to ecosystems.
nounThe biological decomposition of organic matter, especially animal or vegetable tissue, into simpler substances through the action of bacteria, fungi, and other organisms. The process produces an offensive smell and is commonly described as rotting or decay.
- The process by which organic matter decomposes and rots, especially through the action of bacteria and fungi.
- The deteriorating condition or decay of a material or substance caused by such decomposition.
"The unusually warm weather accelerated the putrefaction of the food left in the storeroom."
"Signs of putrefaction had already begun to appear in the carcass."
"Salt and cool temperatures delayed putrefaction and helped preserve the meat."
The plural is uncommon because putrefaction is normally used as a mass noun for the biological process.
"Researchers studied the putrefactions produced by several groups of microorganisms."
Putrefaction is nature's microscopic recycling system: decomposers break down organic matter, though usually before most of us would want to encounter the results.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does putrefaction come from?
Putrefaction comes through Middle English and Old French from Latin putrefactio, a noun derived from putrefacere, “to make rotten.” That verb combined putris, meaning “rotten,” with facere, “to make.” The related English words putrid, putrescent, and putrescence descend from the same Latin family and likewise refer to decay or rotting.
Related word forms
How putrefaction is actually used
Putrefaction is a formal or technical term and is more common in biological, forensic, agricultural, and food-preservation contexts than in everyday speech. It normally implies decay caused by microorganisms and is often associated with a strong, unpleasant smell.