Logwood
Pronunciation : Log"wood` n.
Etymology : [So called from being imported in logs.]
Definition : Defn: The heartwood of a tree (H?matoxylon Campechianum), a native of South America, It is a red, heavy wood, containing a crystalline substance called h?matoxylin, and is used largely in dyeing. An extract from this wood is used in medicine as an astringent. Also called Campeachy wood, and bloodwood.
Source : Webster's Unabridged Dictionary, 1913