shell-lac

2 definitions found

shell-lac - Collaborative International Dictionary of English v.0.48 :

  Shellac \Shel"lac`\, Shell-lac \Shell"-lac`\, n. [Shell + lac a
     resinous substance; cf. D. shellak, G. schellack.]
     1. Lac which has been reduced to a thin crust. See the Note
        under 2d Lac.
        [1913 Webster]
  
     2. A solution of shellac[1] in alcohol or other volatile
        solvent, used as a varnish.
        [PJC]
  
     3. A phonograph record, made of a material containing
        shellac; -- no longer manufactured. [Obsolescent] --RHUD
        [PJC]

  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]