"indicators" in the noun sense
1. index, index number, indicant, indicator
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
2. indicator
a signal for attracting attention
3. indicator
a device for showing the operating condition of some system
4. indicator
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
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