Demulsion is a term used to describe the process of separating an emulsion into its constituent parts. There are a few synonyms that can also be used to describe this process. For example, one synonym could be "decomposition," which refers to breaking down something into its individual components. Another synonym for demulsion could be "dispersal," which refers to the spreading out of something that was previously concentrated. Additionally, "dissociation" is another possible synonym for demulsion, which refers to the breaking apart of a chemical compound into its individual ions. These synonyms can be used interchangeably with demulsion depending on the context in which they are used.