[gwahy-uh-kuh m]


any of several tropical American trees or shrubs belonging to the genus Guaiacum of the caltrop family; lignum vitae.
the hard, heavy wood of such a tree; guaiac.
resin obtained from such a tree; guaiac.

Nearby words

  1. guadeloupe,
  2. guadiana,
  3. guaguanche,
  4. guaiac,
  5. guaiacol,
  6. guaira,
  7. guajira,
  8. guam,
  9. guamanian,
  10. guan

Origin of guaiacum

1525–35; < New Latin < Spanish guayaco, guayacán < Taino Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for guaiacum

British Dictionary definitions for guaiacum




any tropical American evergreen tree of the zygophyllaceous genus Guaiacum, such as the lignum vitae
the hard heavy wood of any of these trees
Also called: guaiac (ˈɡwaɪæk) a brownish resin obtained from the lignum vitae, used medicinally and in making varnishes

Word Origin for guaiacum

C16: New Latin, from Spanish guayaco, of Taino origin

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012