Shellac
Shellac , noun
[Shell + lac a resinous substance; compare Dutch shellak, German schellack.]
1.
Lac which has been reduced to a thin crust. See the Note under 2d Lac.
2.
A solution of shellac{1} in alcohol or other volatile solvent, used as a varnish.
3.
A phonograph record, made of a material containing shellac; -- no longer manufactured. [Obsolescent] — RHUD
Also: Shell-lac