decomposition in WordNet English dictionary

1. (chemistry) separation of a substance into two or more substances that may differ from each other and from the original substance
   decomposition  decomposition reaction  chemical decomposition reaction 
   
2. the organic phenomenon of rotting
   decay  decomposition 
   
3. the analysis of a vector field
   decomposition  vector decomposition 
   
4. (biology) the process of decay caused by bacterial or fungal action
   decomposition  rot  rotting  putrefaction 
   
5. in a decomposed state
   decomposition  disintegration