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