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