Pallas Athena was one of the poetical names given to the Greek goddess Athena (although it's no longer clear what Pallas was supposed to mean), and the original palladium was a statue of Athena that was believed to have the power to protect the ancient city of Troy. When an asteroid belt was discovered between Mars and Jupiter, most of the asteroids were named after figures in Greek mythology, and one of the first to be discovered was named Pallas in 1803. In the same year, scientists isolated a new silvery metal element, which they named palladium in honor of the recently discovered asteroid.
Or they may be broken open, and the metallic honeycombs mined for platinum, palladium and rhodium—precious metals that can be sold on the secondary market.—Michael Harley, Forbes, 28 Nov. 2023 Catalytic converters, an anti-pollution part installed under every car, are made of several metals — platinum, palladium and rhodium — that spiked in value from 2020 to 2022.—Jasmine Cui, NBC News, 5 Nov. 2023 Catalytic converters, cylindrical hunks of metal within the exhaust system of most cars and trucks, transform harmful gases into less-harmful ones using precious metals including rhodium, palladium and platinum.—Joe Barrett, WSJ, 29 Oct. 2022 Triplet sensitizers typically contain a heavy metal like palladium, iridium, or platinum.—Tracy H. Schloemer, IEEE Spectrum, 19 Sep. 2023 Thieves are after what’s inside of catalytic converters — platinum, rhodium, and palladium, rare earth metals that are more valuable than gold, according to the nonprofit.—Natallie Rocha, San Diego Union-Tribune, 16 Sep. 2023 Higher prices for platinum, palladium and rhodium coupled with supply constraints during the COVID pandemic fueled the catalytic converter crime wave.—Jessica Guynn, USA TODAY, 17 Aug. 2023 In addition, the physical gold or physical silver (or platinum or palladium) held in a precious metals IRA confers the substantial tax advantages that come with all IRAs.—J.b. Maverick | Iron Monk Solutions, The Salt Lake Tribune, 31 Jan. 2023 The devices contain the valuable minerals rhodium, palladium and platinum.—Russ Wiles, The Arizona Republic, 24 Jan. 2023 See More
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Middle English, from Latin, from Greek palladion, from Pallad-, Pallas