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