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(lk), Lakh (lk)}, n.[Hind. lak, lkh, lksh, Skr. laksha a mark, sign, lakh.] One hundred thousand; also, a vaguely great number; as, a lac of rupees. [Written also lack.] [East Indies] Lac n.[Per. lak; akin to Skr. lksh: cf. F. lague, It. & NL. lacca. Cf. Lake a color, Lacquer, Litmus.] 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. Stick-lac is the substance in its natural state, incrusting small twigs. When broken off, and the coloring matter partly removed, the granular residuum is called seed-lac. When melted, and reduced to a thin crust, it is called shell-lac or shellac. Lac is an important ingredient in sealing wax, dyes, varnishes, and lacquers. Ceylon lac, a resinous exudation of the tree Croton lacciferum, resembling lac. Lac dye, a scarlet dye obtained from stick-lac. Lac lake, the coloring matter of lac dye when precipitated from its solutions by alum. Mexican lac, an exudation of the tree Croton Draco. スポンサード リンク
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