单词	phosphine
释义	phosphine noun phos·​phine ˈfäs-ˌfēn  1 : any of various derivatives of phosphine analogous to amines but weaker as bases 2 : a colorless poisonous flammable gas PH3 that is a weaker base than ammonia and that is used especially to fumigate stored grain Example Sentences Recent Examples on the Web These chemicals, such as methyl bromide, ethylene oxide, and phosphine, can cause myriad symptoms, ranging from nausea and skin irritation to seizures and even death. Chris Baraniuk, Wired, 16 July 2022 After the phosphine announcement, the Internet exploded with discussions about the discovery. Katrina Miller, Wired, 14 July 2021 The researchers argued that Venus’ phosphine levels are too high to be geologic in origin. NBC News, 29 June 2021 Some researchers said their own analyses turned up empty for phosphine. Marina Koren, The Atlantic, 18 July 2021 Astronomers spotted the chemical signature of phosphine, a gas that on Earth is only associated with life. Doyle Rice, USA TODAY, 15 Sep. 2020 On Earth, phosphine—a toxic gas—is produced by microorganisms. Marina Koren, The Atlantic, 14 Sep. 2020 Last year, researchers announced the discovery of phosphine in Venus’ atmosphere. Joshua Hawkins, BGR, 23 Dec. 2021 Most recently, researchers studying the atmosphere of Venus claimed to see significant amounts of phosphine there—a gas that, on Earth, is chiefly made by microorganisms. Natalie Elliot, Scientific American, 23 Nov. 2021 See More Word History Etymology International Scientific Vocabulary First Known Use 1868, in the meaning defined at sense 2 Medical Definition phosphine noun phos·​phine -ˌfēn  1 : a colorless poisonous flammable gas PH3 that is a weaker base than ammonia and that is used especially to fumigate stored grain 2 : any of various derivatives of phosphine analogous to amines but weaker as bases
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