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
- 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。 - 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。 - Study on synthesis and scavenging capacity of free radical of hesperidin-zinc complex
橙皮苷锌配合物合成及清除自由基能力的研究 - 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。 - 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 - Abstract: A water dispersed SBS grafted polymer was synthesized by free radical polymerization.
文摘：采用自由基接枝共聚的方法合成了亲水性SBS接枝丙烯酸共聚物，同时进行了结构表征。 - 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。 - Copper-containing enzymes play important roles in iron and catecholamine metabolism, free radical scavenging, and in the synthesis of hemoglobin, elastin and collagen.
含铜的酶在铁和儿茶酚胺的代谢、自由基清除、合成血红蛋白、弹性蛋白和胶原蛋白中发挥重要作用。