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Definition of Catalytic converter
1. Noun. A converter that uses a platinum-iridium catalyst to oxidize pollutants and carbon monoxide into carbon dioxide and water; an antipollution device on an automotive exhaust system.
Definition of Catalytic converter
1. Noun. (automotive) A chamber containing a finely divided platinum catalyst in which carbon monoxide and hydrocarbons from the exhaust are oxidized to carbon dioxide. ¹
¹ Source: wiktionary.com