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unleaded gasoline

unleaded gasoline

1 3.0
Fuel for cars that does not contain lead
  • noun
  • /ʌnˈliːdɪd ˈɡæsəˌliːn/
  • US
translation icon : gasolina sin plomo
  • Europe also has had to acquire supplies and a distribution network for unleaded gasoline.
  • unleaded gasoline and diesel

Examples

  • Motor group AAA reports that a gallon of regular unleaded gasoline in California, on average, costs $4.66, compared to a national average of $3.81.

    Blog text (20)
  • Perhaps the most dramatic changes have occurred at PEMEX, the government's oil company, which is rapidly expanding production and distribution of its new unleaded gasoline, MAGNASIN, which should one day be available nationwide.

    Academic text (1991)
  • Funds are used for new buses, unleaded gasoline, clean-burning industrial fuels, and vehicular emission controls.

    Academic text (1993)
  • Catalytic converters are the best available technology for emission abatement, and they require unleaded gasoline.

    Academic text (1990)
  • MasterCard, in its report, found the decrease in demand came against a 6-cent rise in the average price for a gallon of regular unleaded gasoline.

    Blog text (15)
  • Based on AAA's Daily Fuel Gauge report, 24/7 Wall St. identified the states with the least expensive average price of a gallon of unleaded gasoline as of October 2.

    Blog text (30)
  • If engine performance is not sacrificed, both the catalytic conversion of exhaust gases and the use of unleaded gasoline increase energy requirements for the engine and the oil refinery by as much as 10 percent.

    Academic text (1990)
  • Many vehicles today are designed to run on unleaded gasoline instead of leaded fuel.

  • The use of unleaded gasoline has significantly reduced harmful emissions from cars.

  • To improve air quality, many countries have switched to using unleaded gasoline for all vehicles.

Synonyms

unleaded petrol
vsunleaded gasoline
  • UK
2.5

Petrol without added lead used to fuel cars

does not emphasize reducing air pollution in its description

Antonyms

leaded gasoline
  • Archaic
1 6.5

Gasoline with lead added to reduce engine knocking but harms health

How Leaded

leaded gasoline
  • Archaic
1 6.5
unleaded gasoline
  • US
1 3.0

Surface Forms

Morphology

unleaded + gasoline

The meaning 'gasoline without added lead' is directly compositional: 'unleaded' negates the presence of lead and 'gasoline' names the fuel, so the overall sense is immediately derivable from the parts. The negation-prefix + noun pattern is a common, transparent morphological process across languages, so a B1 learner who knows the constituents will understand it.

Etymology

Unleaded gasoline comes from the time when people stopped adding lead to car fuel. The word unleaded means 'without lead', so unleaded gasoline is fuel 'without lead' and is safer for engines and people.