Definition of guayacan
1 : any of several South and Central American timber trees typically with strong dense hard wood: such as a : any of certain lignum vitae of the genus Guaiacum (especially G. sanctum) b : any of certain trees of the genus Tabebuia c : an Argentine tree (Caesalpinia melanocarpa) yielding a timber used for railway ties, paving, and heavy construction d : guaiacum wood
2 : guaiacum 2
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Origin and Etymology of guayacan
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