wood burning

from The Collaborative International Dictionary of English v.0.48

Pyrography \Py*rog"ra*phy\, n. [Pyro- + -graphy.]
   A process of printing, ornamenting, or carving, by burning
   with heated instruments. One variant is {wood burning}.
   [1913 Webster +PJC]

from The Collaborative International Dictionary of English v.0.48

Xylopyrography \Xy`lo*py*rog"ra*phy\ n. [Xylo- + Gr. ?, ?, fire
   + -graphy.]
   The art or practice of burning pictures on wood with a hot
   iron; -- called also {wood burning} and {poker painting}. See
   {Poker picture}, under {Poker}.
   [1913 Webster + PJC]
   [1913 Webster]