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单词	citrulline
释义	citrulline noun cit·​rul·​line ˈsi-trə-ˌlēn  : a crystalline amino acid C6H13N3O3 formed especially as an intermediate in the conversion of ornithine to arginine Example Sentences Recent Examples on the Web Researchers linked watermelon juice’s ability to relieve achy muscles to its L-citrulline content, which is an amino acid that helps to reduce muscle damage. Erica Sweeney, Good Housekeeping, 16 June 2022 Watermelon rinds also contain L-citrulline, which may reduce blood pressure and boost athletic performance. Erica Sweeney, Good Housekeeping, 16 June 2022 Nitric oxide is a naturally occurring compound that also impacts your circulatory system, but supplement manufacturers often rely on other vasodilators like L-citrulline to help stimulate this compound after consumption. Zee Krstic, Good Housekeeping, 29 Aug. 2021 Research is limited on the benefits of nitric oxide in physical performance, but one piece of evidence suggests supplements with L-citrulline and other vasodilators can increase the amount of nutrients transported to muscle groups. Zee Krstic, Good Housekeeping, 29 Aug. 2021 Research also shows that L-citrulline may improve muscle oxygenation and athletic performance during endurance exercise. Cynthia Sass, Mph, Health.com, 12 Aug. 2020 Watermelon also contains the amino acid citrulline that dilates blood vessels and, according to some, acts as a sort of natural Viagra. Paul Cappiello, The Courier-Journal, 3 July 2020 Still others, like caffeine and citrulline malate, have more equivocal evidence. Sara Chodosh, Popular Science, 3 Jan. 2019 What’s more, watermelon has an amino acid called l-citrulline, which may diminish muscle soreness after intense exercise. NBC News, 11 July 2018 See More Word History Etymology International Scientific Vocabulary, from New Latin Citrullus, genus name of the watermelon First Known Use 1930, in the meaning defined above Medical Definition citrulline noun cit·​rul·​line ˈsi-trə-ˌlēn; si-ˈtrəl-ˌēn, -ən  : a crystalline amino acid C6H13N3O3 formed especially as an intermediate in the conversion of ornithine to arginine in the living system
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