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