suberin
/ˈsuːbərɪn/
noun
- A waxy, waterproof substance found in the cell walls of cork and other plant tissues, helping to prevent water loss and protect against damage.
- Scientists study suberin to develop better natural coatings for packaging.
- The bark of the cork oak tree is rich in suberin, which makes it waterproof and buoyant.
- Plants use suberin to seal off damaged areas and keep pathogens from entering.