Noun
1. something that serves to indicate or suggest;
"an indication of foul play""indications of strain""symptoms are the prime indicants of disease"2. the act of indicating or pointing out by name
3. (medicine) a reason to prescribe a drug or perform a procedure;
"the presence of bacterial infection was an indication for the use of antibiotics"4. something (as a course of action) that is indicated as expedient or necessary;
"there were indications that it was time to leave"5. a datum about some physical state that is presented to a user by a meter or similar instrument;
"he could not believe the meter reading""the barometer gave clear indications of an approaching storm"