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