A colorless to yellowish oily liquid containing phenols and creosols, obtained by the destructive distillation of wood tar, especially from the wood of a beech, and formerly used as an expectorant in treating chronic bronchitis.

• 杂酚一种含有酚混合物的无色到黄色油状液体，可由木焦油（特别是山毛木焦油）干馏而得，以前被用作治疗慢性支气管炎的祛痰剂