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mastic n. 乳香脂,乳香,灰泥之一种 乳香脂,乳香,灰泥之一种 mastic n 1: an aromatic exudate from the mastic tree; used chiefly in varnishes 2: a pasty cement used as an adhesive or filler 3: an evergreen shrub of the Mediterranean region that is cultivated for its resin [ synonym: { mastic}, { mastic tree}, { lentisk}, { Pistacia lentiscus}] Mastic \ Mas" tic\, n. [ F., fr. L. mastiche, mastichum, Gr. ?, fr. ? to chew, because of its being used in the East for chewing.] [ Written also { mastich}.] [ 1913 Webster] 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}. [ 1913 Webster] 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. [ 1913 Webster] 3. A kind of cement composed of burnt clay, litharge, and linseed oil, used for plastering walls, etc. [ 1913 Webster] { 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. [ 1913 Webster]
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