decomposition

definition: the analysis of a vector field
example:
speech part: noun
synonyms: vector decomposition
definition: the organic phenomenon of rotting
example:
speech part: noun
synonyms: decay
definition: the process of decay caused by bacterial or fungal action
example: The dead animal was in an advanced state of decomposition by the time we found it.
speech part: noun
synonyms: putrefaction
definition: (chemistry) separation of a substance into two or more substances that may differ from each other and from the original substance
example:
speech part: noun
synonyms: decomposition reaction chemical decomposition reaction
definition: in a decomposed state
example:
speech part: noun
synonyms: disintegration

How decomposition is being used?