activator: Meaning and Definition of
Pronunciation: (ak'tu-vā"tur), [key]
- a person or thing that activates.
- a catalyst.
- any impurity in a mineral that causes luminescence. Cf. inhibitor (def. 3).
- a removable appliance, usually of hard plastic, that is worn in the mouth instead of a fixed appliance to help align the teeth and improve the relationship of the lower jaw to the upper.
- activator (Thesaurus)