mastich
 乳香脂
 Mas·tic n.  [Written also mastich.]
 1. Bot. A low shrubby tree of the genus Pistacia (Pistacia Lentiscus), growing upon the islands and coasts of the Mediterranean, and producing a valuable resin; -- called also, mastic tree.
 2. A resin exuding from the mastic tree, and obtained by incision.  The best is in yellowish white, semitransparent tears, of a faint smell, and is used as an astringent and an aromatic, also as an ingredient in varnishes.
 3. A kind of cement composed of burnt clay, litharge, and linseed oil, used for plastering walls, etc.
 Barbary mastic Bot., the Pistachia Atlantica.
 Peruvian mastic tree Bot., a small tree (Schinus Molle) with peppery red berries; -- called also pepper tree.
 West Indian mastic Bot., a lofty tree (Bursera gummifera) full of gum resin in every part.
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 Mas·tich n. See Mastic.
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