specificity vs specific

specificity and specific both are nouns.

Word	Noun	Adjective	Verb	Adverb
specificity	Yes	No	No	No
specific	Yes	Yes	No	No

specificity (noun)	specific (noun)
the quality of being specific rather than general	a medicine that has a mitigating effect on a specific disease
the quality of being specific to a particular organism	a fact about some part (as opposed to general)

specificity (adjective)	specific (adjective)
	(sometimes followed by `to') applying to or characterized by or distinguishing something particular or special or unique
	being or affecting a disease produced by a particular microorganism or condition; used also of stains or dyes used in making microscope slides
	relating to or distinguishing or constituting a taxonomic species
	stated explicitly or in detail