Origin of guaiac
First recorded in 1550–60; see origin at guaiacum
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for guaiac
Guaiac wood oil, distilled from the wood of Bulnesia sarmienti.
The principal constituent of the oil is guaiac alcohol, or gusiol.
Tincture of guaiac, diluted to a light sherry-wine color (keep in a dark-glass bottle).A Manual of Clinical Diagnosis
James Campbell Todd