What's the plural form of diffusate? Here's the word you're looking for.
Answer
The noun diffusate can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be diffusate.
However, in more specific contexts, the plural form can also be diffusates e.g. in reference to various types of diffusates
or a collection of diffusates.
Examples
Calculation of the ion equilibria in milk diffusate and comparison with experiment.
