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Definition of: guaiacum
(gwī′ə·kəm) noun
1. Any of a genus (Guajacum) of tropical American trees or shrubs of the caltrop family, especially G. officinale and G. sanctum.
2. The hard, durable, resinous wood of this tree or shrub; lignumvitae.
3. Guaiac. [<NL <Sp. guayacán <Taino]
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