Decomposition (noun)

1. The process of breaking down or breaking apart a substance or compound into smaller parts or elements.
2. The separation of a substance or compound into simpler components, especially as a result of chemical or natural processes.

Origin:

Late middle english from latin decompositio(n-), from decompositus (see decompose).

Examples:

1. The decomposition of dead bodies into simpler compounds can be a slow process.
2. This chemical reaction leads to the decomposition of the molecule into its constituent parts.
3. The decomposition of waste can produce harmful chemicals and gases.
4. The decomposition of organic matter in soil is important for maintaining soil fertility.
5. The decomposition of food can cause spoilage and result in bad odors and tastes.