羟自由基 Traditional 羥自由基 qiǎng zì yóu jī 🔊 hydroxyl radical + Keep this word Meanings qiǎng zì yóu jī 羥自由基 hydroxyl radical Its characters 羟qiǎnghydroxyl (radical)自zìself; oneselfHSK 4由yóuto followHSK 4基jībase; foundation