catalytic converter

noun

: an automobile exhaust-system component containing a catalyst that causes conversion of harmful gases (such as carbon monoxide and uncombusted hydrocarbons) into mostly harmless products (such as water and carbon dioxide)

Examples of catalytic converter in a Sentence

Recent Examples on the Web
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Porsche For this car, Porsche has also worked on reducing its emissions, fitting four catalytic converters to the exhaust, plus a pair of particulate filters, which together help cut NOx emissions on the US test cycle by 44 percent. Ars Technica, 29 Jan. 2025 And because the innovative technologies developed here—like the catalytic converter and electronic fuel injection systems—became universally adopted, the regulations ultimately cleaned up emissions and saved lives around the world. Margo T. Oge, Forbes, 20 Jan. 2025 Walking to his car with a co-worker after a bartending shift, he was shot after confronting three robbers attempting to steal the car’s catalytic converter. Patrick Hipes, Deadline, 15 Jan. 2025 Its parts have been wearing down, its oil has been running low, its ignition timing has drifted, its catalytic converters have clogged. Joshua Rothman, The New Yorker, 14 Jan. 2025 See all Example Sentences for catalytic converter 

Word History

First Known Use

1955, in the meaning defined above

Time Traveler
The first known use of catalytic converter was in 1955

Dictionary Entries Near catalytic converter

Cite this Entry

“Catalytic converter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/catalytic%20converter. Accessed 5 Feb. 2025.

Kids Definition

catalytic converter

noun
: a device containing a catalyst for changing automobile exhaust into mostly harmless products

More from Merriam-Webster on catalytic converter

Last Updated: - Updated example sentences
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