The heartwood of a tree (Hæmatoxylon Campechianum), a native of South America, It is a red, heavy wood, containing a crystalline substance called hæmatoxylin, and is used largely in dyeing. An extract from this wood is used in medicine as an astringent. Also called Campeachy wood, and bloodwood.
- A spiny tropical American tree (Haematoxylon campechianum) in the pea family, having dark heartwood from which a dyestuff is obtained.
- The heartwood of this tree.
- The purplish-red dye obtained from the heartwood of this tree.