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