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