catalytic converter


Definition of catalytic converter

: 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 Launched in the mid-1980s, the original M5 shoehorned the M1 engine into a regular 5-series for a top speed approaching and, without a catalytic converter, exceeding 150 mph. Jens Meiners, Car and Driver, "2021 BMW M5 and M5 Competition Get Updated Tech, Will Reach 190 MPH," 16 June 2020 Police took a report June 1 about a catalytic converter being stolen over the weekend from a car parked in a lot. Bruce Geiselman, cleveland, "Cops seek rosebush thief: Lakewood Police Blotter," 13 June 2020 Innovations in engines and the use of catalytic converters, for instance, reduced vehicle lead emissions in the U.S. by more than 90% between 1980 and 1999. Jonathan Tirone | Bloomberg, Washington Post, "Air Pollution," 6 Nov. 2019 Theft of parts from motor vehicles: Mayfield Road At 8:25 a.m. April 23, police were called to the U-Haul rental lot at 3211 Mayfield Road, where it was reported that catalytic converters from five trucks had been stolen. cleveland, "Man wanted on warrant for rape found in vacant apartment unit: Cleveland Heights Police Blotter," 2 May 2020 Between 0035 hours and 0100 hours on this date a black male, tall, heavy set, wearing a black shirt and gray shorts, cut off four catalytic converters off of two box trucks in the parking lot. Houston Chronicle, "Bellaire Police Department weekly report," 21 Oct. 2019 Theft: Engle Lake Drive Someone removed catalytic converter from two trucks overnight July 27 at Constant Aviation., "Man allows remote access to laptop; loses $1,000s: Middleburg Heights Police Blotter," 2 Aug. 2019 There’s no catalytic converter under his hood, no fuel-saving gizmos that might shave down performance. T. Edward Nickens, Field & Stream, "The Best Bud," 4 Mar. 2020 The items included a catalytic converter and saw with batteries. cleveland, "Thieves target purses in unlocked cars at gas stations: Middleburg Heights Police Blotter," 23 Jan. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'catalytic converter.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of catalytic converter

1955, in the meaning defined above

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Time Traveler for catalytic converter

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The first known use of catalytic converter was in 1955

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Last Updated

23 Jun 2020

Cite this Entry

“Catalytic converter.” Dictionary, Merriam-Webster, Accessed 4 Jul. 2020.

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More Definitions for catalytic converter

catalytic converter


English Language Learners Definition of catalytic converter

: a part of an automobile exhaust system that removes harmful chemicals

More from Merriam-Webster on catalytic converter

Spanish Central: Translation of catalytic converter Encyclopedia article about catalytic converter

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