activator

aktivaattori One who, or that which, activates.
puhekieltä Something that activates a catalyst
puhekieltä Any chemical or agent which regulates one or more genes by increasing the rate of transcription.
puhekieltä A type of effector that increases the rate of enzyme-mediated reactions.
A type of dopant used in phosphors and scintillators.
puhekieltä An agent that enables the flotation of a mineral or minerals.