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leaded gasoline

 

Definitions from WordNet

Noun leaded gasoline has 1 sense
  1. leaded gasoline - 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"
    --1 is a kind of
    gasoline, gasolene, gas, petrol
    Antonyms: unleaded gasoline

Definitions from the Web

Term: Leaded Gasoline

Description

Leaded gasoline, also known as leaded petrol, refers to a type of fuel for internal combustion engines that contains a mixture of gasoline and lead compounds. Historically, it was widely used as a fuel additive to improve engine performance; however, due to its harmful effects on human health and the environment, it has been phased out in most countries.

Senses and Usages

Sense 1: Fuel Additive

In this sense, leaded gasoline refers to gasoline that contains lead compounds, typically tetraethyl lead (TEL). It was commonly used as a fuel additive from the early 1920s until the late 20th century to boost octane ratings and reduce engine knocking. However, due to its high toxicity, leaded gasoline has been replaced by unleaded gasoline in most places worldwide.

Sample Sentence 1: In the past, leaded gasoline was favored by car manufacturers for its ability to prevent engine knock.

Sample Sentence 2: The phasing out of leaded gasoline has significantly improved air quality in urban areas.

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Sense 2: Historical Significance

In this sense, leaded gasoline refers to the significant role it played in the automotive industry and the subsequent global movement to ban its use. It symbolizes an important milestone in environmental awareness and health concerns related to air pollution.

Sample Sentence 1: The introduction of leaded gasoline marked a turning point in the progress of automobiles.

Sample Sentence 2: The phasing out of leaded gasoline is considered a triumph of the environmental movement.

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