The Collaborative International Dictionary
Eugenol \Eu"ge*nol\, n. [Eugenia + -ol.] (Chem.) A colorless, aromatic, liquid hydrocarbon, C10H12O2 resembling the phenols, and hence also called eugenic acid. It is found in the oils of pimento and cloves.
Wiktionary
n. (context chemistry English) The aromatic compound with chemical formula C10H12O2, an allyl chain-substituted guaiacol of the phenylpropanoids, found in essential oils such as clove, nutmeg, and cinnamon.
Wikipedia
Eugenol is a phenylpropene, an allyl chain-substituted guaiacol. Eugenol is a member of the phenylpropanoids class of chemical compounds. It is a colourless to pale yellow oily liquid extracted from certain essential oils especially from clove oil, nutmeg, cinnamon, basil and bay leaf. It is present in concentrations of 80–90% in clove bud oil and at 82–88% in clove leaf oil.
Usage examples of "eugenol".
Williard was always afraid that one day he would confuse bottles and mix in ipecac or eugenol by mistake, but so far, he never had.
The eugenol can be determined by shaking the oil with a solution of potassium hydroxide and measuring the residual oily layer.