peroxide
🇺🇸
/pəˈrɑːksaɪd/
🇬🇧
/pəˈrɒksaɪd/
A chemical used to kill germs and also to lighten hair color.
The hairdresser used peroxide to give her a bright blonde look.
染发师使用过氧化氢使她的头发呈现出明亮的金色。