What's the plural form of crossbedding? Here's the word you're looking for.
Answer
The noun crossbedding can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be crossbedding.
However, in more specific contexts, the plural form can also be crossbeddings e.g. in reference to various types of crossbeddings
or a collection of crossbeddings.
Examples
Crossbedding in the gray sandstones shows that it is now right side up, and in Flagstaff time it was therefore on the east flank of a steply folded anticline.