1. Noun.  A pointer or index that indicates something.
  2. Noun.  A meter or gauge.
  3. Noun.  The needle or dial on such a meter.
  4. Noun.  (chemistry) Any of many substances, such as litmus, used to indicate the concentration of a substance, or the degree of a reaction.
  5. Noun.  (ecology) A plant or animal whose presence is indicative of some specific environment.
  6. Noun.  (economics) A measure, such as unemployment rate, which can be used to predict economic trends.
  7. Noun.  (UK) A trafficator.

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This entry was last updated on RefTopia from its source on 3/20/2012.