Definition of mastic in English:

mastic

noun

  • 1mass noun An aromatic gum or resin which exudes from the bark of a Mediterranean tree, used in making varnish and chewing gum and as a flavouring.

    ‘incense made from sandalwood, eagle-wood, mastic and cloves’
    • ‘When the stems of the bushes are wounded, even slightly, mastic exudes as a clear sticky substance.’
    • ‘Bombay mastic comes from P. cabulica, the terebinth pistachio tree.’
    • ‘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.’
    • ‘Look for Greek or Turkish mastic, which usually comes from pine trees, in Middle Eastern or wholefood stores.’
  • 2The bushy evergreen Mediterranean tree which yields mastic and has aromatic leaves and fruit, closely related to the pistachio.

    • ‘In addition, herbs such as corydal, corydalis, mastic, myrrh, and bupleurum offer strong pain-relieving properties.’
    • ‘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 the desert there will remain some stones, a whole gigantic ruin slowly split and slaked by waters and wind, mastic trees, frost.’
    1. 2.1 Used in names of trees that are similar or related to the mastic tree, e.g. American mastic.
  • 3mass noun A putty-like waterproof filler and sealant used in building.

    ‘run a bead of mastic along the gap’
    as modifier ‘a mastic sealant’
    count noun ‘use a mastic between the joints’
    • ‘On 23 August, 1994, they did some cleaning and also laid some roofing mastic.’
    • ‘I got the patching up done and put some mastic on some of the door casings.’
    • ‘Various mastics or non-cloth-backed tapes are preferable.’
    • ‘This product is designed to be used with mastics.’
    • ‘If you are using mastic cement as an adhesive, fill the joints with thin-set adhesive to avoid water damage.’
    • ‘It dates back to Cork in 1913 when the company made and laid mastic asphalt.’
    • ‘He noticed that in various places round the property, a mastic compound had been used to secure the edges of tiles to adjacent tiles.’
    • ‘The glass threads are then pressed into the mastic vertically one by one.’
    • ‘This is verified by the presence of alkali at the surface-to-surface bond of failed systems, which is responsible for the breakdown of the bonding of glues, mastics, epoxies, paints, and mortars.’
    • ‘I would have done a load more but for the fact that I couldn't find the mastic gun holder.’
    • ‘Special mastics are used to adhere the vinyl to the metal and these can last for several years.’
    • ‘Once again it has been paralysed after vandals blocked coin slots with brown mastic.’
    • ‘If the gap in the duct connection is larger than 1/4 inch use fiberglass reinforcing membrane in addition to mastic.’
    • ‘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 deterioration is extensive, the mastic seal may need to be replaced.’
    • ‘Top tip: fill gaps between primed woodwork and walls with a mastic gun.’
    • ‘For a quick-fix repair, the crack can be sealed with a specialist mastic, for example Plumba Gutter by Dow Corning, which is designed to adhere to lead and brick.’
    • ‘Stone mastic asphalt has only been used in Ireland in the last two years and only on one per cent of the roads network.’
    • ‘These indicate air leaks, and they should be sealed with a duct mastic.’
    • ‘You can also use silicone or mastic sealants to draught-proof doors and window frames and stop water leaking into wood, causing rot.’

Origin

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

Pronunciation

mastic

/ˈmastɪk/