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
Platinum and palladium are essential industrial metals, primarily used in automotive catalytic converters.
—
Sharon Wu, USA Today, 23 Apr. 2026
Not replacing the spark plugs could lead to an engine misfire which could lead to a very costly catalytic converter replacement.
—John Paul Senior Manager Public Affairs and Traffic Safety Aaa Northeast, Hartford Courant, 17 Apr. 2026
Lopez said on top of it, the crooks also stole the catalytic converter from her personal car, which gets parked in the same lot, on Tuesday.
—Lauren Victory, CBS News, 15 Apr. 2026
By the late 1950s, Houdry had invented a rudimentary catalytic converter.
—Ann E. Carlson, The Conversation, 31 Mar. 2026
See All Example Sentences for catalytic converter
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Sharon Wu, USA Today, 23 Apr. 2026
Not replacing the spark plugs could lead to an engine misfire which could lead to a very costly catalytic converter replacement.
—John Paul Senior Manager Public Affairs and Traffic Safety Aaa Northeast, Hartford Courant, 17 Apr. 2026
Lopez said on top of it, the crooks also stole the catalytic converter from her personal car, which gets parked in the same lot, on Tuesday.
—Lauren Victory, CBS News, 15 Apr. 2026
By the late 1950s, Houdry had invented a rudimentary catalytic converter.
—Ann E. Carlson, The Conversation, 31 Mar. 2026
See All Example Sentences for catalytic converter
Cite this Entry
“Catalytic converter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/catalytic%20converter. Accessed 24 Apr. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
