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

Someone stole the catalytic converter from a car parked in the 200 block of South Maple Avenue between 4:30 p.m. May 31 and 8:05 a.m. June 4. Steve Schering,, "Police reports: Driver speeds away while car is being booted in Oak Park," 8 June 2018 Also, a catalytic converter was removed from a vehicle in the 2400 block of Pebble Valley Road prior to 3:22 p.m. Feb. 2. Jim Riccioli, Milwaukee Journal Sentinel, "Woman undresses while walking down Waukesha streets, saying she was hot ... on Jan. 27.," 7 Feb. 2018 But emissions components — including catalytic converters and oxygen sensors — are all warranted for eight years or 80,000 miles. Ray Magliozzi,, "Car Talk: It's Safe To Use Seat Heaters If Stranded In Snow," 11 July 2018 More recently there had been a rash of thefts of catalytic converters from cars parked in driveways and public parking lots. Aaron Gilbreath, Longreads, "Five Early Lessons in Parenting," 5 May 2018 Willowbrook Theft Someone removed the catalytic converter from a vehicle parked on the 6100 block of Knoll Lane Court. Kimberly Fornek,, "Police blotter: Catalytic converter reported stolen from vehicle at The Knolls condominiums," 14 May 2018 Theft from auto, Cheyenne Trail: On Feb. 18, police were dispatched to a Cheyenne Trail residence after its homeowner discovered someone stole his car's catalytic converter. John Benson,, "Resident discovers thieves took his car's catalytic converter: Parma Heights Police Blotter," 1 Mar. 2018 While Honda gave us the CVCC engine, the rest of the industry went with GM’s invention,the catalytic converter. star-telegram, "Gasoline: Pump Us Up?," 28 Apr. 2018 Regulations years ago led to air quality improvement as cars came equipped with catalytic converters and power plants switched to low-nitrogen oxide burners. Tony Barboza,, "Slowdown in emissions reductions could explain stalled progress on smog, study finds," 30 Apr. 2018

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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Last Updated

10 Oct 2018

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Time Traveler for catalytic converter

The first known use of catalytic converter was in 1955

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catalytic converter


English Language Learners Definition of catalytic converter

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

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to clear from alleged fault or guilt

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