Main Entry: mas·tic

Pronunciation: \ˈmas-tik\

Function: noun

Etymology: Middle English mastik, from Latin mastiche, from Greek mastichē, probably back-formation from mastichan

Date: 14th century

1 : an aromatic resinous exudate from mastic trees used chiefly in varnishes
2 : any of various pasty materials used as protective coatings or cements