Being or affecting a disease produced by a particular microorganism or condition. Used also of stains or dyes used in making microscope slides.

Quinine is highly specific for malaria.
A specific remedy.
A specific stain is one having a specific affinity for particular structural elements.
specific

(sometimes followed by `to') applying to or characterized by or distinguishing something particular or special or unique.

Rules with specific application.
Demands specific to the job.
A specific and detailed account of the accident.
specific