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