turpentine UK /ˈtɜː.pənˌtaɪn/US /ˈtɝ.pənˌtaɪn/noun 3verb 1forms 4 noun3 •A volatile essential oil now obtained from such oleoresin of from the wood of pine trees by steam distillation; a complex mixture of monoterpenes; now used as a solvent and paint thinner. •Any oleoresin secreted by the wood or bark of certain trees. •(Australia) A turpentine tree (genus Syncarpia).Turpentine timber was obtained from the forests outside Maryborough and Townsville, and shipped by rail and landing craft to Hayman Island. — 1954 verb1 •To drain resin from (a tree) for use in making turpentine. formsturpentined · turpentining · turpentines · TURPs