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 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。 - 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。 - 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。 - 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。 - 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。 - 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。 - 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。 - Antioxidants are also called free radical scavengers.
抗氧化剂也被称为自由基的清道夫。 - The anti-oxidizing function can prevent the aging of skin caused by free radical.
具有抗氧化功能，可抵御自由基所造成的肌肤老化。 - Iron and copper increase oxidative stress ( free radical damage), which is a major problem in CFIDS.
增加铁和铜的氧化应激（自由基损伤），这是一个重大问题在CFIDS。