Definitions of 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

a substance that retards or stops an activity
show 6 types...
hide 6 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
a biochemical catalyst such as an 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:
the real physical matter of which a person or thing consists

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, can put you on the path to systematic vocabulary improvement.