a viscous liquid, colorless to black, distilled from rosin and used in making adhesives, inks, insulation, lacquers, lubricants, plasticizers, and varnish.
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British Dictionary definitions for rosin oil
a yellowish fluorescent oily liquid obtained from certain resins, used in the manufacture of carbon black, varnishes, and lacquersAlso called: 'rosinol, retinol
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012