| 1. | a person or thing that indicates. |
| 2. | a pointing or directing device, as a pointer on the dial of an instrument to show pressure, temperature, speed, volume, or the like. |
| 3. | an instrument that indicates the condition of a machine or the like. |
| 4. | an instrument for measuring and recording variations of pressure in the cylinder of an engine. |
| 5. | Chemistry.
|
| 6. | Ecology. a plant, animal, or species that indicates, by its presence in a given area, the existence of certain environmental conditions. |
Indicator
Anything used to predict future financial or economic trends.
Investopedia Commentary
In the context of technical analysis, an indicator is a mathematical calculation based on a securities price and/or volume. The result is used to predict future prices. In an economic context, an indicator could be a measure such as the unemployment rate which can be used to predict future economic trends.
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See also: Coincident Indicator, DJIA, Inflation, Interest Rates, Lagging Indicator, Leading Indicator, Technical Analysis
indicator
indicator in·di·ca·tor (ĭn'dĭ-kā'tər)
n.
One that indicates, especially a pointer or an index.
An instrument used to monitor the operation or condition of an engine, an electrical network, or another physical system; a meter or gauge.
The needle, dial, or other registering device on such an instrument.
Any of various substances, such as litmus or phenolphthalein, that indicate the presence, absence, or concentration of another substance or the degree of reaction between substances by means of a characteristic change, especially in color.
| indicator (ĭn'dĭ-kā'tər) Pronunciation Key
A chemical compound that changes color and structure when exposed to certain conditions and is therefore useful for chemical tests. Litmus, for example, is an indicator that becomes red in the presence of acids and blue in the presence of bases. |
indicator
any substance that gives a visible sign, usually by a colour change, of the presence or absence of a threshold concentration of a chemical species, such as an acid or an alkali in a solution. An example is the substance called methyl yellow, which imparts a yellow colour to an alkaline solution. If acid is slowly added, the solution remains yellow until all the alkali has been neutralized, whereupon the colour suddenly changes to red
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