ˌekˌspreˈsivəd.ē, -vətē, -i noun
( -es )
Etymology: International Scientific Vocabulary expressive + -ity; originally formed as German expressivität
1. : the relative capacity of a gene to modify the organism of which it is a part — compare penetrance
2.
[ expressive + -ity ]
: the quality of being expressive
works in which intellectual interest … is in perfect balance with expressivity — Edward Cushing