Source : Webster's Revised Unabridged Dictionary (1913)

Buhl \Buhl\, Buhlwork \Buhl"work\, n. [From A. Ch. Boule, a
   French carver in wood.]
   Decorative woodwork in which tortoise shell, yellow metal,
   white metal, etc., are inlaid, forming scrolls, cartouches,
   etc. [Written also {boule}, {boulework}.]