expressivity
Noun
Meaning
(uncountable) The quality of being expressive.
Synonym: expressiveness
(genetics) The degree to which a gene affects or can affect an organism.
Source: en.wiktionary.orgSynonyms
Antonyms
Examples
A theory is called categorical if it determines a structure up to isomorphism, but it turns out that this definition is not useful, due to serious restrictions in the expressivity of first-order logic.
Lack of expressivity (when compared to higher logics such as second-order logic ) has its advantages, though.