单词	anoxia
释义	anoxia noun an·​ox·​ia a-ˈnäk-sē-ə  1 : hypoxia especially of such severity as to result in permanent damage 2 : the absence of dissolved oxygen in a body of water Anoxia (zero milligrams 02 per liter) is not only deadly for biota, but is also a condition that initiates different microbial and geochemical reactions. Nathan Hawley Example Sentences Recent Examples on the Web When the brain is starved of blood flow (ischemia) and oxygen (anoxia), the patient faints in a fraction of a minute and his or her electroencephalogram, or EEG, becomes isoelectric—in other words, flat. Christof Koch, Scientific American, 19 May 2020 These eruptions ejected massive amounts of heat-trapping gases such as carbon dioxide into the atmosphere, enabling runaway global warming and related effects such as ocean acidification and anoxia, a loss of dissolved oxygen in water. Michael Greshko, National Geographic, 30 Sep. 2019 Just as in the late Devonian, increased weathering would have brought on anoxia that suffocated the oceans. Michael Greshko, National Geographic, 30 Sep. 2019 Scientists had previously suspected that anoxia, or a lack of oxygen, was responsible for destroying aquatic life. Lucas Joel, Scientific American, 15 May 2018 The findings may have special relevance in modern times because the trigger for this ancient anoxia was most likely climate change caused by Siberian volcanoes pumping carbon dioxide into the atmosphere. Lucas Joel, Scientific American, 15 May 2018 Tim had overdosed on heroin, and suffered catastrophic anoxia, a lack of oxygen to the brain. Steve Smith, Courant Community, 6 June 2017 Other researchers had proposed that low oxygen levels — a condition known as anoxia — could be involved. Alexandra Witze, WIRED, 5 Jan. 2011 See More Word History Etymology New Latin First Known Use 1931, in the meaning defined at sense 1 Medical Definition anoxia noun an·​ox·​ia ə-ˈnäk-sē-ə, a-  : hypoxia especially of such severity as to result in permanent damage
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