hydrogen peroxide
noun [ U ] chemistry specialized uk/ˌhaɪ.drɪ.dʒən pəˈrɒk.saɪd/ us/ˌhaɪ.drɪ.dʒən pəˈrɑːk.saɪd/
过氧化氢，双氧水（一种无色化学试剂，用于杀菌，为织物、毛发去色等）
a clear liquid chemical used to kill bacteria, to remove colour from cloth, and to bleach hair
See also: peroxide