A volatile oil obtained by distilling tar, sometimes used as an insecticide.
More example sentences
- An old gardening book of mine suggests using lindane or malathion, or painting with 10 percent tar oil, but none of the above products is available.
- Its fungicidal properties are some of the well-known properties of tar oil derivatives such as creosote, do you agree?
- The planned Canadian natural gas pipeline will have part of its natural gas going toward tar oil extraction.