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Definition of catalytic converter

catalytic converter

Plural:catalytic converters
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• noun

1

An exhaust emission control device used in internal combustion engines that reduces toxic gases and pollutants into less harmful substances through chemical reactions involving a catalyst.

Example

"The mechanic replaced the stolen catalytic converter to ensure the car would pass its mandatory state emissions test."

• Nearby Words

catalpa
catalyst
catalytic
catalytic converter
catalyze
catamaran
catananche

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Catalytic converter. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/catalytic-converter
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