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