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mastic Syllabification: mas·tic
Pronunciation: /ˈmastik/

Definition of mastic in English:


1An aromatic gum or resin exuded from the bark of a Mediterranean tree, used in making varnish and chewing gum and as a flavoring.
Example sentences
  • Acrylic and ketone resins are used in place of the traditional dammar, mastic, and copal resins for the manufacture of many oil painting media and picture varnishes.
  • When the stems of the bushes are wounded, even slightly, mastic exudes as a clear sticky substance.
  • Look for Greek or Turkish mastic, which usually comes from pine trees, in Middle Eastern or wholefood stores.
2 (also mastic tree) The bushy evergreen Mediterranean tree of the cashew family that yields mastic and has aromatic leaves and fruit, closely related to the pistachio.
  • Pistacia lentiscus, family Anacardiaceae
Example sentences
  • Mastic gum is a resinous exudate obtained from the stem and leaves of the mastic tree, an evergreen shrub native to the Mediterranean Basin.
  • In addition, herbs such as corydal, corydalis, mastic, myrrh, and bupleurum offer strong pain-relieving properties.
  • In the desert there will remain some stones, a whole gigantic ruin slowly split and slaked by waters and wind, mastic trees, frost.
3A puttylike waterproof filler and sealant used in building.
Example sentences
  • You can also use silicone or mastic sealants to draught-proof doors and window frames and stop water leaking into wood, causing rot.
  • Use mirror mastic, a strong waterproof adhesive that's available at large hardware stores and glass shops, to mount the mirror to the plywood.
  • If you are using mastic cement as an adhesive, fill the joints with thin-set adhesive to avoid water damage.


Late Middle English: via Old French and Latin from Greek mastikhē (perhaps from mastikhan 'masticate').

Words that rhyme with mastic

bombastic, drastic, dynastic, ecclesiastic, elastic, encomiastic, enthusiastic, fantastic, gymnastic, iconoclastic, monastic, neoplastic, orgastic, orgiastic, periphrastic, plastic, pleonastic, sarcastic, scholastic, scholiastic
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