from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A yellowish oily aromatic substance, C7H8O2, derived from guaiacum or wood creosote and used chiefly as an expectorant, antiseptic, and local anesthetic.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A naturally occurring aromatic organic compound with the chemical formula C6H4(OH)(OCH3), having certain medicinal applications.
from the GNU version of the Collaborative International Dictionary of English
- n. A colorless liquid, C7H8O2, with a peculiar odor. It is the methyl ether of pyrocatechin, and is obtained by distilling guaiacum from wood-tar creosote, and in other ways. It has been used in the past for treating pulmonary tuberculosis.
from The Century Dictionary and Cyclopedia
- n. Same as guiacol.
What's known is that a compound called guaiacol correlates to smokiness.
Most wine doesn't have any guaiacol, though if it's aged in oak barrels it can end up with 20 to 50 micrograms per liter.
Quantitative analysis, by means of gas chromatography-mass spectrometry, identified guaiacol, 4-methylguaiacol, 4-ethylguaiacol, 4-ethylphenol, eugenol, and furfural in each of the wines made from smoked grapes.
These volatile phenols vinyl guaiacol, p. 738 may suggest cloves and similar spices, but also a medicinal quality like that of plastic bandages, or an animal quality reminiscent of the barnyard or stable.
It therefore includes some of the characteristic aroma components of apples, and others that are especially accentuated in apple fermentation; these include the volatile phenols that give animal and stable aromas to grape wines ethyl guaiacol and ethyl phenol, p.
Amongst polyhydric alcohols, the behaviour of the methyl ester of catechol, _guaiacol_ was investigated.
The sulphonic acid was prepared by heating guaiacol with concentrated sulphuric acid, the resulting water-soluble product possessing a light, brownish-green colour.
However, much relief is obtained from the use of steam atomizers filled with an aqueous solution of compound tincture of benzoin, creosote or guaiacol.
The internal administration of iodine and the intratracheal injection of bland oily solutions of menthol, guaiacol, or gomenol are helpful.
-- Pulmonary gangrene has been followed by recovery after the endobronchial injection of oily solutions of gomenol and guaiacol (Guisez).