Turpentine oil

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turpentine oil

A volatile oil, distilled from turpentine, that has been used as a diuretic, carminative, vermifuge, expectorant, rubefacient, and counterirritant.

Synonym: oleum terebinthinae, turpentine spirit.

Rectified turpentine oil, obtained by treating turpentine oil with sodium hydroxide, and redistilling; used externally as a counterirritant.