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inactivate

To make something, such as an enzyme, drug, hormone or germ, stop working.

in-AK-tih-vate verb

What it means

Used for anything the body or a treatment switches off. The liver inactivates many drugs, which is why liver disease can make drug levels build up. Heat and disinfectants inactivate germs, and an inactivated vaccine contains killed germs that cannot cause the disease.

At a glance

Also writteninactivates, inactivated, inactivation

Related terms

vaccine

A product that trains the immune system to protect the body against a specific disease.

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