indicator

definition: a device for showing the operating condition of some system
example:
speech part: noun
synonyms:
definition: a number or ratio (a value on a scale of measurement) derived from a series of observed facts
example:
speech part: noun
synonyms: index number indicant index
definition: a signal for attracting attention
example:
speech part: noun
synonyms:
definition: (chemistry) a substance that changes color to indicate the presence of some ion or substance
example:
speech part: noun
synonyms:
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