What does the word indicator mean?

Usage examples for indicator

  1. Here, as in Verhaeren's whole evolution, his verse is the most delicately sensitive indicator of the psychic revulsion, the perfect proof of a poetic and organic development which is really inward and dependent only on the laws of his blood. – Ã‰mile Verhaeren by Stefan Zweig
  2. He was listening eagerly and also watching an indicator that told the numbers of the rooms which called, as they flashed into view. – The Exploits of Elaine by Arthur B. Reeve
  3. If it's a speed or distance indicator, the dial's inside, out o' sight. – "Where Angels Fear to Tread" and Other Stories of the Sea by Morgan Robertson