from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A tree of the genus Guaiacum; a lignum vitae.
  • n. The wood of a guaiacum.
  • n. A greenish-brown resin obtained from this tree, used medicinally and in varnishes.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of a number of species of tree of the genus Guaiacum, native to the West Indies and parts of the Americas.
  • n. The wood or resin of this tree.


New Latin, from Spanish guayacán, from Taino.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Modern Latin, from Spanish guayacan. (Wiktionary)



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  • " power on earth could prevent them from hurrying to bawdy-houses as soon as they were ashore. These cases he treated with calomel and guaiacum..."
    --O'Brian, The Wine-Dark Sea, 75

    March 14, 2008