What's the plural form of desynonymization? Here's the word you're looking for.
Answer
The noun desynonymization can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be desynonymization.
However, in more specific contexts, the plural form can also be desynonymizations e.g. in reference to various types of desynonymizations
or a collection of desynonymizations.