The grammatical form denoting more than one person, place, thing, or idea.
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Technologies such as catalytic converters and particulate filters can help reduce these emissions, but they also increase the cost and complexity of engines.
From Science Daily ● Mar. 13, 2026
Europium is crucial for television screens, cerium is used for polishing glass and refining oil, lanthanum makes a car's catalytic converters operate -- the list of uses in today's economy is virtually endless.
From Barron's ● Oct. 16, 2025
The coroner said Mr Connors, Mr Harty and Mr James were believed to have been involved in the theft of catalytic converters from cars.
From BBC ● Jul. 15, 2024
There has been a jump in the number of thefts of catalytic converters, or “cats” for short, in recent years.
From New York Times ● May 27, 2024
Thefts of catalytic converters skyrocketed in California during the COVID-19 pandemic, which some attributed to an increase in economic distress.
From Los Angeles Times ● May 25, 2024
