mastic definition by Webster's New World
- a yellowish resin obtained from a small Mediterranean evergreen tree (Pistacia lentiscus) of the cashew family, used as an astringent and in making varnish, adhesives, etc.
- the treein full mastic tree
- any of various pasty substances used as adhesives, sealants, etc.
Origin: Middle English mastik ; from Old French mastic ; from Late Latin mastichum ; from Classical Latin mastiche ; from Classical Greek mastichē, akin to mastichan: see masticate
mastic definition by American Heritage Dictionary
- The mastic tree.
- The aromatic resin of the mastic tree, used especially in varnishes, lacquers, adhesives, and condiments and as an astringent.
- A pastelike cement used in highway construction, especially one made with powdered lime or brick and tar.
Origin: Middle English, mastic resin, from Old French mastich, from Latin mastichum, mastichē, from Greek mastikhē, chewing gum, mastic, from mastikhān, to grind the teeth.