a yellowish oily creosote-like liquid extracted from guaiacum resin and hardwood tar, used medicinally as an expectorant. Formula: C7H8O2
Word origin
from guaiac(um) + -ol2
guaiacol in American English
(ˈgwaɪəˌkɔl; ˈgwaɪəˌkoʊl)
noun
a whitish, crystalline solid or slightly yellowish, oily liquid, C6H4(OH)OCH3, prepared from guaiacum or wood creosote and used in medicine as an expectorant or antiseptic and as a chemical reagent