specificity /spɛsɪˈfɪsɪti/ noun4 •The state of being specific rather than general. •The extent to which a characteristic is specific to a given person, place, or thing. •The probability, in a binary classification test, of a true negative being correctly identified. •The extent to which a particular diagnostic test is specific for, or a symptom or sign is specific to, a given condition. formsspecificities