单词	rhenium
释义	rhenium noun rhe·​ni·​um ˈrē-nē-əm  : a rare heavy metallic element that is obtained either as a gray powder or as a silver-white hard metal, is usually extracted as a by-product of molybdenum smelting, and is used especially in catalysts and alloys see Chemical Elements Table Example Sentences Recent Examples on the Web The United States is more than 75% import reliant on an additional 10 critical minerals: antimony, barite, bauxite, bismuth, potash, rhenium, tellurium, tin, titanium concentrate, and uranium. Ariel Cohen, Forbes, 22 Sep. 2021 Developers have long been beckoned by a lode of gold, copper, rhenium and other minerals near southwestern Alaska’s Bristol Bay. Jennifer A Dlouhy, Bloomberg.com, 29 Oct. 2020 Scientists have captured video of a pair of rhenium atoms breaking apart and bonding again in a carbon nanotube. Theresa Machemer, Smithsonian Magazine, 22 Jan. 2020 An individual rhenium atom is just 205 picometers across: 205 trillionths of a meter, and .205 nanometers. Caroline Delbert, Popular Mechanics, 22 Jan. 2020 As a transition metal, rhenium can be creative with its bonds. Theresa Machemer, Smithsonian Magazine, 22 Jan. 2020 For example, the DoD is pushing to improve the recovery of rhenium, a rare earth element that is key to produce the new stealth Joint Strike Fighters for its exceptional heat-resistant properties. Lorenzo Franceschi-bicchierai, WIRED, 7 Aug. 2012 See More Word History Etymology New Latin, from Latin Rhenus Rhine River First Known Use 1925, in the meaning defined above Medical Definition rhenium noun rhe·​ni·​um ˈrē-nē-əm  : a rare heavy metallic element that resembles manganese, is obtained either as a powder or as a silver-white hard metal, and is used in catalysts for dehydrogenation and in thermocouples —symbol Re see Chemical Elements Table
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