mastic

/ˈmæstɪk/
noun
  1. A sticky resin obtained from the mastic tree, used in varnishes, adhesives, and as a chewing gum.
    • Mastic is an ingredient in some high-quality varnishes for wood.
    • She bought a jar of mastic resin from the spice market.
    • The ancient Greeks used mastic as a natural chewing gum.
  2. A type of tree (Pistacia lentiscus) that produces this resin, native to the Mediterranean region.
    • The landscape was dotted with low, bushy mastic trees.
    • Farmers carefully score the bark of the mastic to collect the resin.
    • The mastic tree grows abundantly on the Greek island of Chios.
  3. A waterproof, flexible sealant used in construction and plumbing.
    • A tube of mastic is essential for any home repair kit.
    • The plumber used mastic to seal the pipe joints.
    • He applied mastic around the window frame to stop drafts.
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