rosin oil

rosin oil noun

1. a viscous liquid, colorless to black, distilled from rosin and used in making adhesives, inks, insulation, lacquers, lubricants, plasticizers, and varnish.

British Dictionary definitions for rosin oil rosin oil noun

1. a yellowish fluorescent oily liquid obtained from certain resins, used in the manufacture of carbon black, varnishes, and lacquersAlso called: ‘rosinol, retinol