What's the plural form of protanomaly? Here's the word you're looking for.
Answer
The noun protanomaly can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be protanomaly.
However, in more specific contexts, the plural form can also be protanomalies e.g. in reference to various types of protanomalies
or a collection of protanomalies.
Examples
This feature offers three correction modes which are deuteranomaly, protanomaly and tritanomaly.
He asked them to use blue for emphasis because the red they were using appeared black due to his protanomaly.