free radical
英 [ˌfriː ˈrædɪkl]
美 [ˌfriː ˈrædɪkl]
n. 自由基; 游离基
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
- in the body free radicals are high-energy particles that ricochet wildly and damage cells
双语例句
- 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 - Vitamin E is the main body of biological free radical scavenger and antioxidant one.
维生素E是体内最主要的生物自由基清除剂和抗氧化剂之一。 - 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。 - 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。 - 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。 - 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。 - Status of free radical and water in ultradried seeds with distinct moisture content were investigated in safflower seed.
研究了不同超干度的红花种子自由基和水分状态。 - We studied the effect of scavenging hydroxyl free radical by Se-polysaccharide and Se-protein under the best condition of Fenton system.
结果表明：硒多糖和硒蛋白清除羟自由基的效果比与之相同浓度的无机硒和相同浓度的多糖及蛋白都要明显； - Free Radical Scavenging Effects of Extracts from Various Parts of Citrus
柑橘不同部位提取物对羟自由基的清除作用研究