light oil

noun

Definition of light oil

  1. 1 :  an oil of low specific gravity or relatively low boiling point (as below about 200° C): such as a :  a flammable product obtained by the distillation of coal tar and containing aromatic hydrocarbons, phenols, and pyridine b :  a somewhat similar product recovered from wash oil after the scrubbing of coke-oven gas and used as a source of benzene and other aromatic hydrocarbons c :  naphtha or other flammable petroleum distillate

  2. 2 :  a crude petroleum having a high Baumé gravity (as 30° or higher)

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