nattokinaseWiktionary 原文英美词源链日语Japanese納豆菌‘nattō-bacteria’↓ 派生英语Englishnattokinase词源说明From Japanese 納豆菌 (nattōkin, “nattō-bacteria”) + -ase. (It is not a kinase.)释义名词noun1(biochemistry) A serine protease of the subtilisin family, extracted from natto.