activator

Other forms: activators

Definitions of activator

1. noun

   (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
   antonyms:

   inhibitor

   a substance that retards or stops an activity

   types:

   activating agent

   (mineral extraction) a surface-active chemical used in flotation process to increase the attraction to a specific mineral

   accelerator, catalyst

   (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

   sensitiser, sensitizer

   (chemistry) a substance other than a catalyst that facilitates the start of a catalytic reaction

   biocatalyst

   a biochemical catalyst such as an enzyme

   enzyme

   any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions

   platinum black

   a fine black powder of platinum; used as a catalyst in chemical reactions

   type of:

   substance

   the real physical matter of which a person or thing consists