rosin oil definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a viscous, odorless oil, obtained by the fractional distillation of rosin and used as a lubricant, etc.
rosin oil definition by American Heritage Dictionary
A white to brown viscous liquid obtained by fractional distillation of rosin and used in lubricants, adhesives, electrical insulation, and printing inks.