English noun: activator | |||
1. | activator (substance) (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 | ||
Broader (hypernym) | substance | ||
Narrower (hyponym) | accelerator, activating agent, catalyst, sensitiser, sensitizer | ||
Domain category | biological science, biology | ||
Antonyms | inhibitor | ||