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单词 ketone
释义

ketone

noun

ke·​tone ˈkē-ˌtōn How to pronounce ketone (audio)
: any of a class of organic compounds (such as acetone) characterized by a carbonyl group attached to two carbon atoms
ketonic
kē-ˈtä-nik How to pronounce ketone (audio)
adjective

Example Sentences

Recent Examples on the Web In the starvation state, ketone bodies are important energy sources, because the body is not capable of solely utilizing fat for energy. Mckale Montgomery, The Conversation, 19 May 2022 Neither has been associated with the secretive ketone project. Amby Burfoot, Outside Online, 29 July 2020 Participants had their blood glucose and ketone levels measured every hour for four hours after consuming each of the options. Cynthia Sass, Mph, Health.com, 29 Oct. 2021 The most popular low-carb diet is the high-fat keto diet, and Freeman says there’s some positive data to suggest that ketone production might be a good thing for the body. Washington Post, 12 Aug. 2021 The company is awaiting Food and Drug Administration clearance for its glucose biometer, which would have dual function with its platform used for tracking and testing ketone levels in a person's body. Nick Williams, Star Tribune, 18 June 2021 In a recent study, researchers found that, contrary to prevailing thought, glioblastoma tumors can get around the dearth of glucose by feeding on ketone bodies. Jocelyn Kaiser, Science | AAAS, 1 Apr. 2021 Using fat instead of glucose for fuel produces ketones as a byproduct, which can lead to your blood becoming too acidic, especially in those who don’t have enough properly functioning insulin to control ketone levels. Bruce Y. Lee, Forbes, 20 Mar. 2021 For decades, Dutch chemists have tapped sources in China for BMK to manufacture amphetamine, and its cousin, piperonyl methyl ketone, or PMK, used to manufacture MDMA, the main ingredient in ecstasy. Valentina Pop, WSJ, 8 Dec. 2020 See More

Word History

Etymology

borrowed from German Keton, coinage based on Aceton acetone

Note: The German term Keton was apparently the coinage of the chemist Leopold Gmelin (1788-1853), who introduced it in Handbuch der organischen Chemie, 1. Band, 4. Auflage (Heidelberg, 1848), p. 40 passim. Gmelin characterized ketones as "Acetone im allgemeinen" ("acetones in general"), acetone being the smallest and simplest ketone.

First Known Use

1851, in the meaning defined above

Medical Definition

ketone

noun

ke·​tone ˈkē-ˌtōn How to pronounce ketone (audio)
: an organic compound (as acetone) with a carbonyl group attached to two carbon atoms
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更新时间:2024/12/23 5:32:45