读知识>英语词典>free radical翻译和用法

free radical

英 [ˌfriː ˈrædɪkl]

美 [ˌfriː ˈrædɪkl]

n.  自由基; 游离基

医学化学

牛津词典

    noun

    • 自由基;游离基
      an atom or group of atoms that has an electron that is not part of a pair, causing it to take part easily in chemical reactions. Free radicals in the body are thought to be one of the causes of diseases such as cancer.

      柯林斯词典

      • 自由基;游离基
        Free radicalsare atoms that contain one or more unpaired electrons. Free radicals are believed to be a cause of ageing, heart disease, and some cancers.

        英英释义

        noun

        • an atom or group of atoms with at least one unpaired electron
          1. in the body free radicals are high-energy particles that ricochet wildly and damage cells
          Synonym:radical

        双语例句

        • They are large molecules that are able to maintain stability even if they are in a free radical form.
          抗氧化剂是很大的分子团,即使是在自由基的状态下它们仍能保持稳定。
        • Mitochondria play an important role in energy metabolism, free radical production, aging and cell apoptosis.
          线粒体在能量代谢、自由基产生、衰老、细胞凋亡中起重要作用。
        • This investigation reveals that carminic acid has certain free radical scavenging activity, thereby providing a food additive.
          结果表明胭脂红酸是一种对自由基具有一定清除活性的食品添加剂。
        • Furthermore, the mechanism of free radical scavenging reactions of Magnolol and Honokiol were proposed.
          此外,初步探讨了其自由基清除活性反应机理。
        • The Effect of Dioxin on Expressions of AhR Genes and the Free Radical
          二恶英中毒对AhR基因表达和自由基水平的影响
        • Secondary inflammatory reaction and free radical damage existed in the tissue around intracerebral hemorrhage.
          脑出血后血肿周围存在继发炎性反应与自由基损伤。
        • They also dramatically increase free radical generation in the brain.
          他们还大幅增加自由基的生成在大脑中。
        • Study on the ability of scavenging free radical of the different extracts from leaves of Eucalyptus
          桉树叶不同提取物对自由基的清除能力研究
        • The oxygen free radical scavenging activities and anti-lipoprotein oxidative effects of green tea polysaccharides were studied.
          研究绿茶多糖体外清除氧自由基与抗脂蛋白氧化作用。
        • This reaction has been classified as a free radical chain process.
          这种反应是按自由基连锁反应的历程进行分类的。