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