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