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