Definition of activator


  • (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.

Related words

accelerator, catalyst, sensitiser, sensitizer.

Rhymes with activator

accelerator, accumulator, actuator, actuator, administrator, agitator, alligator, allocator, alternator, animator, applicator, appropriator, arbitrator, aviator, calculator, carburetor, collaborator, commentator, communicator, conciliator.

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More information about activator

activator unscrambled

Scrabble and Words With Friends points

  • activator is a valid Scrabble US word, worth 14 points
  • activator is a valid Scrabble UK word, worth 14 points
  • activator is a valid Words With Friends word, worth 16 points
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noun: a sporting competition in which contestants play a series of games to decide the winner.

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