What's the plural form of peramorphosis? Here's the word you're looking for.
Answer
The noun peramorphosis can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be peramorphosis.
However, in more specific contexts, the plural form can also be peramorphoses e.g. in reference to various types of peramorphoses
or a collection of peramorphoses.
Examples
It exhibits peramorphosis to a degree unknown in any other caudate, in the case of a few characters even unknown in any other lissamphibian.