1. designed or treated to prevent tarnishing, especially of metals such as silver

Examples

• The jewelry box has an antitarnish lining to keep silver items bright.
• She bought antitarnish strips to place in her silverware drawer.
• The antitarnish coating on the mirror helps it maintain its reflective quality.
• These antitarnish bags are perfect for storing heirloom silver pieces.
• The antitarnish cloth removes light oxidation from sterling silver.