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
- 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。 - 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。 - 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 - 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。 - 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 - 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。 - 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。 - 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。