activator n : (biology) any agency bringing about activation; a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription [ant: inhibitor]

English

Noun

activator

1. Any chemical or agent which regulates one or more genes by increasing the rate of transcription.
2. One who, or that which, activates.

Activator may mean:

• Activator (genetics), a DNA-binding protein that regulates one or more genes by increasing the rate of transcription
• Activator (proteomics), a type of effector that increases the rate of enzyme mediated reactions
• Sega Activator, a motion-sensing controller for the Sega Genesis
• Activator technique, a method of spinal adjustment
• Activator, a hardcore band from Brooklyn Ny.