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