Synonyms and Antonyms for indicator
1. indicator (n.)
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 (n.)
a device for showing the operating condition of some system
3. indicator (n.)
a signal for attracting attention
4. indicator (n.)
(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
