some thing, such as for instance a typographical device, that acts to indicate.
That which shows or points out.
whatever indicates or points out.
That which acts to point out or show; specifically, in medicine, whatever shows an appropriate solution or treatment, as an indicator or combination of symptoms, or even the reputation for the outcome.
something which acts to point or recommend
a number or proportion (a value on a scale of dimension) derived from a number of noticed details; can unveil general modifications as a function of time