One who, or that which, shows or points
out; as, a fare indicator in a street car.
A pressure gauge; a water
gauge, as for a steam boiler; an apparatus or instrument for showing
the working of a machine or moving part
The part of an instrument
by which an effect is indicated, as an index or pointer.
Any bird of the genus
Indicator and allied genera. See Honey guide, under
Honey.
That which indicates the
condition of acidity, alkalinity, or the deficiency, excess, or
sufficiency of a standard reagent, by causing an appearance,
disappearance, or change of color, as in titration or volumetric
analysis.
In celebration of Noah Webster's Birthday (October 16, 2009), we have prepared an updated website. 
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