- Rhymes: -æstɪk
mastic (plural mastics)
- An evergreen shrub or small tree, Pistacia lentiscus, native to the Mediterranean.
- A hard, brittle, aromatic and transparent resin produced by this tree and used to make varnishes and chewing gum, and as a flavouring.
- A flexible, waterproof cement used as an adhesive, sealant or filler.
the shrub or tree Pistacia lentiscus
the tree's resin
the flexible, waterproof filler