Source : Webster's Revised Unabridged Dictionary (1913)

Calambour \Cal"am*bour\ (k[a^]l"[a^]m*b[=oo]r), n. [See
   {Calambac}.]
   A species of agalloch, or aloes wood, of a dusky or mottled
   color, of a light, friable texture, and less fragrant than
   calambac; -- used by cabinetmakers.