What's the plural form of ambisexuality? Here's the word you're looking for.
Answer
The noun ambisexuality can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be ambisexuality.
However, in more specific contexts, the plural form can also be ambisexualities e.g. in reference to various types of ambisexualities
or a collection of ambisexualities.
Examples
Although it's been out since 2004, the game's novel ambisexuality, not to mention its communist underpinnings, has gone largely unnoticed.