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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

        • 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。
        • The high quality high-solids hydroxyl acrylic resins with low viscosity were prepared by free radical polymerization.
          合成的改性物对羟基树脂有极好的相容性,可以与羟基丙烯酸树脂配成涂料。
        • 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。
        • 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
        • Objective to study the scavenging effect of Cheqiancao on oxygen free radical.
          目的研究车前草对氧自由基的清除作用。
        • OBJECTIVE: To study the effects of anaerobic interval training on free radical metabolism in rats.
          目的:观察无氧间歇训练对大鼠体内自由基代谢的影响。
        • Protein helps repair cells that have suffered free radical damage.
          蛋白质帮助修复被自由基破坏的受损细胞。
        • 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 majority of vinyl monomers can be used for free radical polymerization catalyst.
          乙烯基类单体大多数可以采用游离基型催化剂进行聚合。
        • Objective To investigate the mechanisms of nonenzymatic glycosylation inducing myocardial aging and free radical theory.
          目的以非酶糖基化和自由基学说探讨心肌老化的发生机制。