英语词汇“free radical”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

　

单词	free radical
释义	free radical Word forms: plural free radicals countable noun [usually plural] Free radicals are atoms that contain one or more unpaired electrons. Free radicals are believed to be a cause of ageing, heart disease, and some cancers. [technical] free radical in British English noun an atom or group of atoms containing at least one unpaired electron and existing for a brief period of time before reacting to produce a stable molecule Sometimes shortened to: radical. Compare group (sense 10) free radical in American English an atom or molecule having at least one unpaired electron: free radicals are usuallyvery reactive and unstable, and can damage healthy body cells free radical in the Pharmaceutical Industry (fri rædɪkəl) Word forms: (regular plural) free radicals noun (Pharmaceutical: Physiology) Free radicals are atoms that contain one or more unpaired electrons. Free radicals are believed to be a cause of aging, heart disease, and some cancers. Free radicals are molecules thought to be responsible for aging and skin damage. It is believed that unpaired electrons, called free radicals, can damage cells in the body. Free radicals are atoms that contain one or more unpaired electrons. Examples of 'free radical' in a sentence free radical Free radicals are produced in excess by things such as smoking, - which during the season. The Sun (2016) One of the most significant is the harmful biochemical process caused by "free radicals". Sedgbeer, Sandra The A-Z of Beauty Treatment (1994) Exposure to light causes free radicals to form. Westcott, Patsy Alternative Health Care for Women (1991) Free radicals are one of the biggest causes of internal damage. Times, Sunday Times (2006) It is already well established that ultraviolet radiation produces free radicals in tissue. Youngson, Dr. Robert The Antioxidant Health Plan (1994) Free radicals are unstable molecules formed by the action of oxygen in the body. Westcott, Patsy Alternative Health Care for Women (1991) It claimed the trigger is a surplus of free radicals - harmful molecules produced as our bodies process oxygen. The Sun (2015) At the same time, more free radicals were released, leading to cells to age more rapidly. Times, Sunday Times (2014)
随便看	outnumber out of out of 100 cars sold, only one had any faults out of a clear blue sky out of action out of a hat out of all proportion to out-of-all-proportion-to out of all reason out of a (or the) clear (blue) sky out-of-a-or-the-clear-blue-sky out-of-body out-of-body experience out of bounds out of breath out of business out of character out of circulation out of commission out of condition out of consideration for sb/sth out of context out of control out of court out-of-court

　

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更新时间：2024/9/21 15:28:41