specificity

spec·i·fic·i·ty

noun \ˌspes-ə-ˈfis-ət-ē\

plural spec·i·fic·i·ties

Definition of SPECIFICITY

: the quality or condition of being specific: as a : the condition of being peculiar to a particular individual or group of organisms <host specificity of a parasite> b : the condition of participating in or catalyzing only one or a few chemical reactions <the specificity of an enzyme>