1. corrected or improved a problem or deficiency
Usage: past tense of remediate; often used in environmental or educational contexts

Examples

• The company remediated the contaminated soil at the factory site.
• Students who failed the test were remediated through additional tutoring.
• The environmental team successfully remediated the polluted groundwater.
• After the data breach, the IT department remediated all security vulnerabilities.
• The school remediated learning gaps identified during the assessment.
• Workers remediated the asbestos problem in the old building.