1. people who correct or fix errors, mistakes, or problems
2. devices or substances used to correct or adjust something

Examples

• The correctors found several spelling mistakes in the manuscript.
• Professional correctors reviewed the final draft before publication.
• The teacher hired student correctors to help grade the exams.
• Vision correctors like glasses help people see more clearly.
• The lab technicians used pH correctors to balance the solution.
• Digital correctors automatically fix common typing errors.