from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A colourless liquid produced by the dry distillation of guaiac resin.
from the GNU version of the Collaborative International Dictionary of English
- n. A colorless liquid, C6H4.OCH3.OH, resembling the phenols, found as a constituent of woodtar creosote, and produced by the dry distillation of guaiac resin.
from The Century Dictionary and Cyclopedia
- n. A product of the distillation of gum guaiacum resembling creosote. It is also a constituent of wood-tar. When pure it is a colorless liquid.
The guiacol molecules generally bind themselves to elements in the juice * after* fermentation, so testing the grapes, juice and/or must will not do much to reveal the presence of smoke taint.
 Tar yields pyroligneous acid, oil of tar, and pitch: as well as guiacol and creasote.
After the first few days of this treatment, adjust a suspensory bandage, which can be procured at any apothecary shop, and apply daily the following ointment: guiacol, sixty grains; lard, one-half ounce, over the swollen testicle.