Pyroligneous

{ Pyr′o‐lig″ne‐ous (?), Pyr′o‐lig″nic (?), } a. [Pyro-+ L. lignum wood: cf. F. pyroligneux.] (Old Chem.) Pertaining to, or designating, the acid liquid obtained in the distillation of wood, consisting essentially of impure acetic acid.