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.
guaiac(um) + -ol2.(American Heritage® Dictionary of the English Language, Fourth Edition)
guaiacum, from which it can be derived, and -ol. (Wiktionary)