The clear area devoid of bacterial growth around an antiseptic or disinfectant disk is referred to as the zone of inhibition.
What is an antiseptic or disinfectant?
An antiseptic substance is a substance that prevents or stops the growth of microorganisms.
A disinfectant is a chemical substance usually a liquid that destroys bacteria.
When a material colony is grown on a plate and an antiseptic or disinfectant is added to the palate, the region where there is no growth of bacterial colonies is known as the zone of inhibition, where the antiseptic or disinfectant has prevented the bacteria cells from growing.
In conclusion, the zone of inhibition represents the area of the antiseptic effect.
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