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|Noun||1.||genus Guaiacum - small genus of evergreen resinous trees or shrubs of warm and tropical America|
rosid dicot genus - a genus of dicotyledonous plants
bean-caper family, family Zygophyllaceae, Zygophyllaceae - small trees, shrubs, and herbs of warm arid and saline regions; often resinous; some poisonous: genera Zygophyllum, Tribulus, Guaiacum, Larrea
Guaiacum officinale, lignum vitae - small evergreen tree of Caribbean and southern Central America to northern South America; a source of lignum vitae wood, hardest of commercial timbers, and a medicinal resin