a preparation consisting of resinous matter, as copal or lac, dissolved in an oil (oil varnish) or in alcohol (spirit varnish) or other volatile liquid. When applied to the surface of wood, metal, etc., it dries and leaves a hard, more or less glossy, usually transparent coating.
the sap of certain trees, used for the same purpose (natural varnish)
any of various other preparations similarly used, as one having India rubber, pyroxylin, or asphalt as its chief constituent.
a coating or surface of varnish.
something resembling or suggesting a coat of varnish; gloss.