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| catalytic converter | |
| Pronunciation: | ka-tuh-li-tik kon-ver-ter |
| Definition : | An air pollution control device that removes organic contaminants by oxidizing them into carbon dioxide and water through a chemical reaction using a catalyst. (A catalyst is a substance that increases or decreased the rate of a chemical reaction without being changed itself.) |
| Facts: |
Catalytic converters are required in all automobiles sold in the United States. |