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   In·di·ca·tor

   /ˈindəˌkādər/

   

   noun

   • 1. a thing, especially a trend or fact, that indicates the state or level of something: "car ownership is frequently used as an indicator of affluence" Similar measuregaugebarometerindexmarksignsignalguide tostandardtouchstoneyardstickbenchmarkcriterionpoint of referenceguidelinetestlitmus test
   • ▪ an animal or plant species that can be used to infer conditions in a particular habitat: "the raccoon is a poor choice as an indicator of riparian habitat"
   • 2. a gauge or meter of a specified kind: "a speed indicator" Similar metermeasuring instrumentmeasuring devicemeasuregaugedialdisplayscaleindex
   • ▪ a flashing light or (formerly) other device on a vehicle to show that it is about to change lanes or turn; a turn signal: British "an indicator light"
   • 3. 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: "the remaining alkali is titrated against standard acid using phenolphthalein as indicator"

   Scrabble Points: 12

   • I

     1

   • N

     1

   • D

     2

   • I

     1

   • C

     3

   • A

     1

   • T

     1

   • O

     1

   • R

     1

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