1. a person or thing that makes something better or improves a situation
Usage: formal

Examples

• The new principal served as an ameliorator of the school’s declining academic standards.
• Technology can be a powerful ameliorator of social problems when used wisely.
• She was known as an ameliorator of workplace conflicts.
• The medicine acted as an ameliorator of his chronic pain.
• Environmental groups see renewable energy as an ameliorator of climate change.
• The counselor was an effective ameliorator of family disputes.