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