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