proactivator

proactivator

 [pro-ak´tĭ-va″ter] a precursor of an activator; a factor that reacts with an enzyme to form an activator.

pro·ac·ti·va·tor

(prō'ak'ti-vā-tŏr), A substance that, when chemically split, yields a fragment (activator) capable of rendering another substance enzymatically active.

pro·ac·ti·va·tor

(prō-ak'ti-vā-tŏr) A substance that, when chemically split, yields a fragment (activator) capable of rendering another substance enzymatically active.