Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun indicator

4 senses of indicator

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)
       => fact -- (a statement or assertion of verified information about something that is the case or has happened; "he supported his argument with an impressive array of facts")

Sense 2
indicator -- (a signal for attracting attention)
       => signal, signaling, sign -- (any nonverbal action or gesture that encodes a message; "signals from the boat suddenly stopped")

Sense 3
indicator -- (a device for showing the operating condition of some system)
       => device -- (an instrumentality invented for a particular purpose; "the device is small enough to wear on your wrist"; "a device intended to conserve water")

Sense 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)
       => coloring material, colouring material, color, colour -- (any material used for its color; "she used a different color for the trim")

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