Definition of free radical in English:

free radical

noun

Chemistry

An uncharged molecule (typically highly reactive and short-lived) having an unpaired valency electron.
〔化〕自由基，游离基
Example sentencesExamples
- It is produced through a free radical polymerization reaction of styrene monomers.
- These free radicals are highly reactive chemically and can themselves alter molecules in the cell.
- In the free radical polymerization of ethylene to form polyethylene, a small amount of a peroxide is added to a large volume of ethylene.
- This free radical attacks the double bonds on other monomers creating a longer chain molecule and an additional free radical.
- It is well known that high-temperature free radical reactions can be quenched by the presence of nitric oxide, itself a free radical.

Definition of free radical in US English:

free radical

nounfri ˈrædəkəl

Chemistry

An uncharged molecule (typically highly reactive and short-lived) having an unpaired valence electron.
〔化〕自由基，游离基
Example sentencesExamples
- In the free radical polymerization of ethylene to form polyethylene, a small amount of a peroxide is added to a large volume of ethylene.
- These free radicals are highly reactive chemically and can themselves alter molecules in the cell.
- It is well known that high-temperature free radical reactions can be quenched by the presence of nitric oxide, itself a free radical.
- It is produced through a free radical polymerization reaction of styrene monomers.
- This free radical attacks the double bonds on other monomers creating a longer chain molecule and an additional free radical.

单词	free radical
释义	Definition of free radical in English: free radical noun Chemistry An uncharged molecule (typically highly reactive and short-lived) having an unpaired valency electron. 〔化〕自由基，游离基 Example sentencesExamples It is produced through a free radical polymerization reaction of styrene monomers. These free radicals are highly reactive chemically and can themselves alter molecules in the cell. In the free radical polymerization of ethylene to form polyethylene, a small amount of a peroxide is added to a large volume of ethylene. This free radical attacks the double bonds on other monomers creating a longer chain molecule and an additional free radical. It is well known that high-temperature free radical reactions can be quenched by the presence of nitric oxide, itself a free radical. Definition of free radical in US English: free radical nounfri ˈrædəkəl Chemistry An uncharged molecule (typically highly reactive and short-lived) having an unpaired valence electron. 〔化〕自由基，游离基 Example sentencesExamples In the free radical polymerization of ethylene to form polyethylene, a small amount of a peroxide is added to a large volume of ethylene. These free radicals are highly reactive chemically and can themselves alter molecules in the cell. It is well known that high-temperature free radical reactions can be quenched by the presence of nitric oxide, itself a free radical. It is produced through a free radical polymerization reaction of styrene monomers. This free radical attacks the double bonds on other monomers creating a longer chain molecule and an additional free radical.
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