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indicator

Syllabification: (in·di·ca·tor)
Pronunciation: /ˈindiˌkātər/

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Definition of indicator

noun

  • 1a thing, especially a trend or fact, that indicates the state or level of something:car ownership is frequently used as an indicator of affluence
  • 2a device providing specific information on the state or condition of something, in particular.
  • [usually with modifier] a gauge or meter of a specified kind:a speed indicator
  • British a turn signal.
  • 3 Chemistry a compound that changes color at a specific pH value or in the presence of a particular substance and can be used to monitor acidity, alkalinity, or the progress of a reaction.
  • 4 (also indicator species) an animal or plant species that can be used to infer conditions in a particular habitat.
Spell indicator with -or at the end.

indicator in other Oxford dictionaries

Definition of indicator in the British & World English dictionary