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