GUAIACUM

guaiacum. Guaiacum, n. a tropical tree and its gum

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Gua″ia‐cum (?), n. [[NL., fr. Sp. guayaco, from native name in Hayti.]] 1. 1. (Bot.) A genus of small, crooked trees, growing in tropical America.
2. 2. The heart wood or the resin of the Guaiacum officinale or lignum-vitæ, a large tree of the West Indies and Central America. It is much used in medicine. [Written also guaiac.]