Resistance
Medical term · R
The ability of a pathogen to withstand drugs previously effective against them. Usually the result of genetic mutation.
Related terms
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MutationThe process by which a change occurs in genetic material and is inherited by the next generation.
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PathogenA tiny organism such as a virus, bacterium, or parasite that can invade the body and produce disease.
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GeneticRelating to, caused or controlled by genes.
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Arterial resistanceThe pressure that the artery walls exert on blood flow; in general, the less elastic the arteries, the greater the arterial resistance and the higher the blood pressure.