Definition of turpentining:
(n) :
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.
(n) :
Any oleoresin secreted by the wood or bark of certain trees.
(v) :
(transitive) To drain resin from (a tree) for use in making turpentine.
(n) :
(Australia) A turpentine tree (genus Syncarpia).