Definition of indicator noun from the Oxford Advanced Learner's Dictionary

      

    indicator

     noun
    noun
    BrE BrE//ˈɪndɪkeɪtə(r)//
     
    ; NAmE NAmE//ˈɪndɪkeɪtər//
     
    Parts of a car
     
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  1. 1a sign that shows you what something is like or how a situation is changing The economic indicators are better than expected. These atmospheric waves are a reliable indicator of weather changes. Synonymssignindication symptom symbol indicator signalThese are all words for an event, action or fact that shows that something exists, is happening or may happen in the future.sign an event, action or fact that shows that something exists, is happening or may happen in the future:Headaches may be a sign of stress.indication (rather formal) a remark or sign that shows that something is happening or what somebody is thinking or feeling:They gave no indication as to how the work should be done.sign or indication?An indication often comes in the form of something that somebody says; a sign is usually something that happens or something that somebody does.symptom a change in your body or mind that shows that you are not healthy; a sign that something exists, especially something bad:Symptoms include a sore throat. The rise in inflation was just one symptom of the poor state of the economy.symbol a person, object or event that represents a more general quality or situation:The dove is a universal symbol of peace.indicator (rather formal) a sign that shows you what something is like or how a situation is changing:the economic indicatorssignal an event, action or fact that shows that something exists, is happening or may happen in the future:Chest pains can be a warning signal of heart problems.sign or signal? Signal is often used to talk about an event, action or fact that suggests to somebody that they should do something. Sign is not usually used in this way:Reducing prison sentences would send the wrong signs to criminals.Patterns a(n) sign/​indication/​symptom/​symbol/​indicator/​signal of something a(n) sign/​indication/​symptom/​indicator/​signal that… a clear sign/​indication/​symptom/​symbol/​indicator/​signal an obvious sign/​indication/​symptom/​symbol/​indicator an early sign/​indication/​symptom/​indicator/​signal an outward sign/​indication/​symbol to give a(n) sign/​indication/​signal
  2. 2a device on a machine that shows speed, pressure, etc. a depth indicator
  3. 3(British English) (North American English turn signal) (informal blinker North American English, British English) a light on a vehicle that flashes to show that the vehicle is going to turn left or right Her right-hand indicator was flashing. See related entries: Parts of a car
  4. Extra examples Gold prices are often seen as an indicator of inflation. It is still difficult to develop indicators for many concepts used in social science. Level of education is actually a poor indicator of ability to run a business well. She flicked on her indicator light and passed the lorry. The stock market is seen as a leading indicator of economic growth. These warts can serve as an indicator of other infections. an indicator for the presence of minerals performance indicators such as language and numeracy skills The economic indicators for the end of the year are better than expected.
See the Oxford Advanced American Dictionary entry: indicator