mas·tic
noun/ˈmæstɪk/
/ˈmæstɪk/
[uncountable]- a substance that comes from the bark of a tree and is used in making varnish
乳香树脂；乳香 - a substance that is used in building to fill holes and keep out water
玛𤧛脂；胶泥
Word Originlate Middle English: via Old French and Latin from Greek mastikhē (perhaps from mastikhan ‘masticate’).