- 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
| 单词 | free radical |
| 释义 | WordReference Random House Unabridged Dictionary of American English © 2024 free′ rad′ical, [Chem., Biochem.]
Collins Concise English Dictionary © HarperCollins Publishers:: free radical n
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