\Pyr`o*lig"ne*ous\, Pyrolignic \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.