lac

lac
    n 1: resinlike substance secreted by certain lac insects; used
         in e.g. varnishes and sealing wax
    

Lac \Lac\ (l[a^]k), Lakh \Lakh\ (l[aum]k), n. [Hind. lak,
   l[=a]kh, l[=a]ksh, Skr. laksha a mark, sign, lakh.]
   One hundred thousand; also, a vaguely great number; as, a lac
   of rupees. [Written also {lack}.] [East Indies]
   [1913 Webster]
    

Lac \Lac\, n. [Per. lak; akin to Skr. l[=a]ksh[=a]: 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 {Laccifer lacca}
   (formerly {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.
   [1913 Webster]

   Note: {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.
         [1913 Webster]

   {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}.
      [1913 Webster]
    

LAC
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