One of the mysteries of the English language finally explained.
An oily yellow liquid with a penetrating odour, obtained by distilling wood tar or guaiac, used as a flavouring and an expectorant.
- ‘Glyceryl ether of guaiacol, commonly known as guaifenesin, is present in multiple cough and cold preparations.’
- ‘Activities of unspecific peroxidases were also measured using guaiacol as the substrate (not shown).’
- ‘These changes were associated with decreased activities of superoxide dismutase and guaiacol peroxidases and contents of ascorbate and glutathione.’
- ‘Its synthetic counterpart, made from guaiacol or eugenol, is used in artificial vanillas.’
- ‘The two main synthetic sources of synthetic vanillin are from guaiacol (chemical industry) and from lignin (paper industry).’
Mid 19th century: from guaiacum + -ol.
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