Dictionary > Zone of inhibition

Zone of inhibition

Definition
noun
(microbiology)
The clear region around the paper disc saturated with an antimicrobial agent on the agar surface.
Supplement
The clear region is an indication of the absence, or the effective inhibition, of microbial growth by the antimicrobial agent. (see disk-diffusion test)
See also: disk-diffusion test, antibiotic, culture, bacteria.


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