Pȳr'o-lig'ne-ōūs or Pȳr'o-lig'nie, a.

a. [Gr. πῦρ, πυρός, fire, and Lat. lignum, wood, ligneus, wooden; Fr. pyroligneux.] (Chem.) Generated or procured by the distillation of wood; — applied to the acid obtained by the distillation of wood, which is an acetic acid holding in solution oily impurities.