n something that serves to indicate or suggest
an indication of foul play indications of strain
n the act of indicating or pointing out by name
n (medicine) a reason to prescribe a drug or perform a procedure
the presence of bacterial infection was an indication for the use of antibiotics
n something (as a course of action) that is indicated as expedient or necessary
there were indications that it was time to leave
n a datum about some physical state that is presented to a user by a meter or similar instrument
the barometer gave clear indications of an approaching storm
n a number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time
n a signal for attracting attention
n a device for showing the operating condition of some system
n (chemistry) a substance that changes color to indicate the presence of some ion or substance; can be used to indicate the completion of a chemical reaction or (in medicine) to test for a particular reaction