过氧化氢酶 guòyǎnghuàqīngméi catalase Origin Definitions Defs Strokes Stroke Words Sentences Sents 过氧化氢 過氧化氫 guòyǎnghuàqīng hydrogen peroxide hydrogen peroxide; a chemical compound with the formula H2O2酶 méi noun enzyme enzyme; fermenting substance produced by living cells that acts as a catalyst in chemical reactions