What's the plural form of coulometry? Here's the word you're looking for.
Answer
The noun coulometry can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be coulometry.
However, in more specific contexts, the plural form can also be coulometries e.g. in reference to various types of coulometries
or a collection of coulometries.
Examples
Based on technologies, the electrochemical instruments market is segmented into potentiometry, voltammetry, coulometry, and other technologies.