activator

noun
ac·​ti·​va·​tor | \ ˈak-tə-ˌvāt-ər How to pronounce activator (audio) \

Medical Definition of activator

1 : a substance (as a chloride ion) that increases the activity of an enzyme — compare coenzyme
2 : a substance given off by developing tissue that stimulates differentiation of adjacent tissue also : a structure giving off such a stimulant

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“Activator.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/activator. Accessed 14 Jul. 2020.

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