free radical

美 [ˌfriː ˈrædɪkl]英 [ˌfriː ˈrædɪkl]

n.自由基;游离基

复数： free radicals

free radical

牛津词典

noun

chemistry 化自由基；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

free radical

频次

1
N-COUNT 自由基;游离基
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.

英英释义

noun

an atom or group of atoms with at least one unpaired electron;in the body it is usually an oxygen molecule that has lost an electron and will stabilize itself by stealing an electron from a nearby molecule: in the body free radicals are high-energy particles that ricochet wildly and damage cells; Synonym: radical

数据来源：WordNet

free radical

牛津词典

柯林斯词典

free radical

1
N-COUNT 自由基;游离基
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.

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free radical

牛津词典

柯林斯词典

free radical

1 N-COUNT 自由基;游离基 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.

英英释义

双语例句

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1
N-COUNT 自由基;游离基
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.