|
|
1. (n.) shellac
lac that has been purified and formed into thin sheets, used for making varnish.
2. shellac
a varnish made by dissolving this material in alcohol or a similar solvent.
3. shellac
a phonograph record made of a breakable material containing shellac, esp. one played at 78 r.p.m.
4. (v.t.) shellac
to coat or treat with shellac.
5. shellac
Slang.
6. shellac
to defeat; trounce.
7. shellac
to thrash soundly.
Etymology: (1705–15; trans. of F laque en écailles lac in thin plates)
|
| Definition of 'shellac' |
Princeton's WordNet |
|
1. (noun) shellac
lac purified by heating and filtering; usually in thin orange or yellow flakes but sometimes bleached white
2. (verb) shellac, shellac varnish
a thin varnish made by dissolving lac in ethanol; used to finish wood
3. (verb) shellac, shellack
cover with shellac
"She wanted to shellac the desk to protect it from water spots"
|
| Definition of 'shellac' |
Webster Dictionary |
|
1. (noun) shellac
see the Note under 2d Lac
|
| Definition of 'shellac' |
The Standard Electrical Dictionary |
|
1. shellac
A resin; produced as an exudation upon the branches of certain Asiatic trees, such as the banyan (Ficus religiosa). It is due to punctures in the bark of the trees in question, which punctures are made by the female of the insect coccus ficus or c. lacca.
Commercial shellac contains about 90 per cent. of resinous material, the rest is made up of wax, gluten, coloring matter and other substances.
Shellac is soluble in alcohol, and in aqueous solutions of ammonium chloride, of borax and in strong ammonia solution. Long standing is required in the case of the last named solvent. Dilute hydrochloric and acetic acids dissolve it readily; nitric acid slowly; strong sulphuric acid is without action on it. Alkalies dissolve it.
In electric work it is used as an insulator and dielectric. Its alcoholic solution is used to varnish glass plates of influence machines, for the coils of induction coils and similar purposes.
Resistance in ohms per centimeter cube at 28° C. (82.4 F.)--(Ayrton), 9.0E15
Specific Inductive Capacity (Wüllner), 2.95 to 3.73
The same substance in less pure forms occurs in commerce, as stick lac, lump lac, seed lac, button lac.
|
|
|
|
|
| Alternative search options for 'shellac' |
|
|
|
|
|
|
|
Definitions of shellac 
