Pyroligneous

from WordNet (r) 3.0 (2006)

pyroligneous
    adj 1: of a substance produced by the effect of heat on wood,
           especially by destructive distillation [syn:
           {pyroligneous}, {pyrolignic}]

from The Collaborative International Dictionary of English v.0.48

Pyroligneous \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.
   [1913 Webster]