双氧水 shuāngyǎngshuǐ hydrogen peroxide (H2O2) solution Origin Definitions Defs Strokes Stroke Words Sentences Sents 双 雙 shuāng numeraladjective two Two; both; dual; twin; double; twofold氧 yǎng noun oxygen oxygen; a colorless, odorless gas necessary for life and combustion水 shuǐ noun water water; a liquid, juice, or lotion