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