Source : Webster's Revised Unabridged Dictionary (1913)

Pyroxyle \Py*rox"yle\, n. [Cf. F. pyroxyle. See {Pyroxylic},
   {-yl}.] Pyroxylic \Pyr`ox*yl"ic\, a. [Pyro- + Gr. ? wood.]
   (Old Chem.)
   Derived from wood by distillation; -- formerly used in
   designating crude wood spirit.