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