1. a resin obtained from a Mediterranean tree, used in varnishes and chewing gum
2. a waterproof filler and sealant used in building and construction
Usage: construction

Examples

• The ancient Greeks chewed mastic as a natural breath freshener.
• Mastic resin has been harvested from trees on the Greek island of Chios for centuries.
• The painter mixed mastic into the varnish to improve its durability.
• Workers applied mastic around the window frame to prevent water leaks.
• The bathroom tiles were sealed with waterproof mastic.
• Mastic is still used today in some traditional Mediterranean recipes.