DICT.TW Dictionary Taiwan

 pro·en·zyme /proˈɛnˌzaɪm/ 名詞
 原酶, 酶原, 前酵素;
 同 zymogen

 proenzyme
      n : any of a group of compounds that are inactive precursors of
          enzymes and require some change (such as the hydrolysis
          of a fragment that masks an active enzyme) to become
          active [syn: zymogen]