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
- 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。 - Antioxidants are also called free radical scavengers.
抗氧化剂也被称为自由基的清道夫。 - 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 - 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。 - 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。 - 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。 - 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 role of oxygen free radical in experimental keratitis a minute hairlike projection on mucous membrane.
氧自由基在实验性角膜炎中的作用黏膜上起保护作用的细小的毛。 - 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。