单词	krypton
释义	krypton noun kryp·​ton ˈkrip-ˌtän  : a colorless relatively inert gaseous element found in air in trace amounts and used especially in electric lamps see Chemical Elements Table Example Sentences Recent Examples on the Web In 1898, two British chemists by the names of Sir William Ramsay and Morris William Travers were credited for discovering the four gases that would eventually be used to create neon signs: neon, krypton, xenon and argon. Jennifer Nalewicki, Smithsonian Magazine, 28 Feb. 2020 In the moon's vacuum, atoms of noble gases such as argon and krypton will be captured in the aluminum. James R. Berry, Popular Mechanics, 19 July 2019 Mercury is much heavier than either xenon or krypton, so spacecraft carrying them would be able to generate more thrust. Avery Thompson, Popular Mechanics, 20 Nov. 2018 But Hahn and Strassmann knew nothing about krypton. Jeremy Bernstein, WSJ, 15 Dec. 2017 The new model suggests our home planet contains significantly more sodium, potassium, chlorine, zinc, strontium, fluorine, gallium, rubidium, niobium, gadolinium, tantalum, helium, argon, and krypton than previously believed. Jay Bennett, Popular Mechanics, 18 Sep. 2017 Alas, the fuddy-duddies of international mineral nomenclature insist that, since the stone doesn’t actually contain the real-world element krypton, it can’t be officially called kryptonite. Brandon Keim, WIRED, 24 Apr. 2007 See More Word History Etymology Greek, neuter of kryptos hidden — more at crypt First Known Use 1898, in the meaning defined above Medical Definition krypton noun kryp·​ton ˈkrip-ˌtän  : a colorless relatively inert gaseous element found in air at about one part per million —symbol Kr see Chemical Elements Table
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