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