Guaiacum
Guaiacum , noun
[New Latin, from Sp. guayaco, from native name in Haiti.]
1.
(Botany) A genus of small, crooked trees, growing in tropical America.
2.
The heart wood or the resin of the Guaiacum officinale or lignum-vita, a large tree of the West Indies and Central America. It is much used in medicine.