catalytic converters

• plural

  plural

  The grammatical form denoting more than one person, place, thing, or idea.

  of catalytic converter.
  catalytic converter

  noun

  an antipollution device in an automotive exhaust system that contains a catalyst for chemically converting some pollutants in the exhaust gases, as carbon monoxide, unburned hydrocarbons, and oxides of nitrogen, into harmless compounds.

Example Sentences

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catalytic converters

Technologies such as catalytic converters and particulate filters can help reduce these emissions, but they also increase the cost and complexity of engines.

From Science Daily ● Mar. 13, 2026

Combustion-engine vehicles use rare earths too, notably in catalytic converters.

From Barron's ● Feb. 4, 2026

Thefts of catalytic converters skyrocketed in California during the COVID-19 pandemic.

From Los Angeles Times ● Aug. 4, 2024

The coroner said Mr Connors, Mr Harty and Mr James were believed to have been involved in the theft of catalytic converters from cars.

From BBC ● Jul. 15, 2024

There has been a jump in the number of thefts of catalytic converters, or “cats” for short, in recent years.

From New York Times ● May 27, 2024

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