Definition of ACTIVATOR

activator

Meanings

Plural: activators

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
  • One who, or that which, activates.
  • Something that activates a catalyst
  • Any chemical or agent which regulates one or more genes by increasing the rate of transcription.
  • A type of effector that increases the rate of enzyme-mediated reactions.
  • A type of dopant used in phosphors and scintillators.
  • An agent that enables the flotation of a mineral or minerals.
  • A hand-held device that delivers a controlled fast thrust to a joint, muscle, etc., to help stimulate nervous system activity.

Origin / Etymology

From activate + -or.

Antonyms

inhibitor

Scrabble Score: 14

activator is a valid Scrabble (US) TWL word
activator is a valid Scrabble Word in Merriam-Webster MW Dictionary
activator is a valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 16

activator is a valid Words With Friends word