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