a datum about some physical state that is presented to a user by a meter or similar instrument | something that precedes and indicates the approach of something or someone |
something that serves to indicate or suggest | a person who goes before or announces the coming of another |
the act of indicating or pointing out by name | a substance from which another substance is formed (especially by a metabolic reaction) |
(medicine) a reason to prescribe a drug or perform a procedure | |
something (as a course of action) that is indicated as expedient or necessary | |