What's the plural form of bombesin? Here's the word you're looking for.
Answer
The noun bombesin can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be bombesin.
However, in more specific contexts, the plural form can also be bombesins e.g. in reference to various types of bombesins
or a collection of bombesins.
Examples
Bombesin analogs are promising ligands for imaging these tumor cells.