wood rosin

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Related to wood rosin: Wood gum, wood sugar, gum rosin

rosin, colophony

A resin obtained as a residue in the distillation of crude turpentine from the sap of pine trees (gum rosin) or from an extract of the stumps and other parts of them (wood rosin).
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The business, the world's only supplier of wood rosin, generated revenues of approximately USD85m in fiscal year 2009.