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