Activator

Alternative forms

• activater

Origin

activate + -or

Full definition of activator

Noun

1. One who, or that which, activates.
2. (biology) Any chemical or agent which regulates one or more genes by increasing the rate of transcription.
3. (biology) A type of effector that increases the rate of enzyme-mediated reactions.
4. A type of dopant used in phosphors and scintillators.
5. (mining) An agent that enables the flotation of a mineral or minerals.