Gum mastic definition of Gum mastic in the Free Online Encyclopedia.

mastic, resin resin, any of a class of amorphous solids or semisolids. Resins are found in nature and are chiefly of vegetable origin. They are typically light yellow to dark brown in color; tasteless; odorless or faintly aromatic; translucent or transparent; brittle, fracturing
..... Click the link for more information. obtained from the small mastic tree Pistacia lentiscus (of the sumac sumac or sumach (sh
..... Click the link for more information. family), found chiefly in Mediterranean countries. When the bark of the tree is injured, the resin exudes in drops. It is transparent and pale yellow to green in color. Mastic is used chiefly in making varnish but is also used medicinally as an astringent and, with aniseed, to flavor a distilled liquor called mastic. The term mastic is also applied to certain caulking and adhesive compounds, especially those consisting of a mineral filler, a resinous binder (e.g., asphalt asphalt (ăs`fôlt, –fălt), brownish-black substance used commonly in road making, roofing, and waterproofing.
..... Click the link for more information. ), and a volatile solvent.

mastic

1. an aromatic resin obtained from the mastic tree and used as an astringent and to make varnishes and lacquers

2. mastic tree

a. a small Mediterranean anacardiaceous evergreen tree, Pistacia lentiscus, that yields the resin mastic

b. any of various similar trees, such as the pepper tree

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mastic
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