n 1 a  :  a yellow to brown semifluid oleoresin obtained as an exudate from the terebinth (Pistacia terebinthus) of the sumac family  b  :  an oleoresin obtained from various conifers (as some pines and firs)  2 a  :  an essential oil obtained from turpentines by distillation and used esp. as a solvent and thinner - called also oil of turpentine   b  :  a similar oil obtained by distillation or carbonization of pinewood - called also wood turpentine  .
 
   
 
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