1. to make inactive or ineffective; to stop something from working or functioning
Usage: third person singular present tense of ‘inactivate’

Examples

• The heat inactivates the enzyme completely.
• This chemical inactivates harmful bacteria in water.
• The vaccine inactivates the virus before injection.
• Sunlight inactivates certain vitamins in food.
• The security system automatically inactivates after midnight.
• The medication inactivates the toxin in the bloodstream.