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
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Join MWU now and get access to America’s largest dictionary, with:
- 300,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Origin and Etymology of guayacan
Spanish guayacán — more at guaiacum
Seen and Heard
What made you want to look up guayacan? Please tell us where you read or heard it (including the quote, if possible).