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A resinous substance produced mainly on the banyan tree, but to some extent on other trees, by the Coccus lacca, a scale-shaped insect, the female of which fixes herself on the bark, and exudes from the margin of her body this resinous substance.

A gum resin gathered from certain Oriental species of Cistus. It has a pungent odor and is chiefly used in making plasters, and for fumigation. [Written also labdanum.]

Laserpitium, of several species (as L. glabrum, and L. siler), the root of which yields a resinous substance of a bitter taste. The genus is mostly European.

A resinous substance obtained as an oxidation product of linoleic acid. [Written also linoxyn.]

A yellowish green resin from Lobelia, used as an emetic and diaphoretic.

The fine yellow resinous powder found upon the strobiles or fruit of hops, and containing this bitter principle. [Written also lupuline.]

of the Semecarpus Anacardium, an East Indian tree. The shell of the nut yields a blackish resinous juice used for marking cotton cloth, and an oil prepared from it is used for rheumatism.

scus), growing upon the islands and coasts of the Mediterranean, and producing a valuable resin; -- called also, mastic tree.

A rare mineral of resinous luster and high specific gravity. It is a tantalate of calcium, and occurs in octahedral crystals usually very minute.

unded objects. -- Modeling wax, beeswax melted with a little Venice turpentine, or other resinous material, and tinted with coloring matter, usually red, -- used in modeling.

A gum resin, usually of a yellowish brown or amber color, of an aromatic odor, and a bitter, slightly pungent taste. It is valued for its odor and for its medicinal properties. It exuds from the bark of a shrub of Abyssinia and Arabia, the Balsamodendron Myrrha. The myrrh of the Bible is supposed to have been partly th…

The fragrant gum resin of various species of Boswellia; Oriental frankincense.

The old name of the aromatic resinous juice of the Balsamodendron opobalsamum, now commonly called balm of Gilead. See under Balm.

A waxlike mineral resin; -- sometimes called native paraffin, and mineral wax.

f a vessel, a seam, a spar, etc., with tar or pitch, or waterproof composition of tallow, resin, etc.; to smear.

e order Dipterocarpeæ, which grows in Malabar, etc.) or its products. Piney dammar, Piney resin, Piney varnish, a pellucid, fragrant, acrid, bitter resin, which exudes from the piney tree (Vateria Indica) when wounded. It is used as a varnish, in making candles, and as a substitute for incense and for amber. Called als…

ned from the pine; formerly, designating an acid which is the chief constituent of common resin, - - now called abietic, or sylvic, acid.

See Pitchstone. Amboyna pitch, the resin of Dammara australis. See Kauri. -- Burgundy pitch. See under Burgundy. -- Canada pitch, the resinous exudation of the hemlock tree (Abies Canadensis); hemlock gum. -- Jew's pitch, bitumen. -- Mineral pitch. See Bitumen and Asphalt. -- Pitch coal (Min.), bituminous coal. -…

m, and other bases, occurring usually in octahedrons of a yellowish or brownish color and resinous luster; -- so called from its becoming grass-green on being subjected to heat under the blowpipe.

A brownish resinous substance obtained as a by-product in the treatment of cinchona bark. It consists of a mixture of several alkaloids. [Written also chinoidine.]