1. Gasoline treated with a lead compound to reduce motor knocks
   "combustion of leaded gasoline released lead into the air where it could cause lead poisoning"
   - leaded petrol [Brit]

Type of: gas [N. Amer], gasolene [N. Amer], gasoline [N. Amer], petrol [Brit]

Antonym: unleaded gasoline [N. Amer]

Encyclopedia: Leaded gasoline

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