Medical Dictionary

tolerance

noun tol·er·ance \ˈtäl(-ə)-rən(t)s\

Medical Definition of TOLERANCE

1
:  the capacity of the body to endure or become less responsive to a substance (as a drug) or a physiological insult especially with repeated use or exposure <developed a tolerance to painkillers>
2
:  the immunological state marked by unresponsiveness to a specific antigen
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