indicator
3
4.3
- noun
- /ˈɪndɪˌkeɪtər/
- Specialized
:
indicador
- A pH test strip acts as a indicator by changing color to show the acidity of a solution.
- chemical indicator
- biological indicator
- used as an indicator
And these anthocyanins turn out to be pH indicators.
- And these anthocyanins turn out to be pH indicators.
- And then you put a few drops of that liquid onto a paper strip or you drop the paper strip into the tube just like one of those indicators for the pool.
Examples
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The deep red color of the tomato is an indicator of its high lycopene content.
Blog text (15) -
Some substances routinely identified in drinking water may act as indicators of the presence of THMs.
Academic text (2003) -
Dark color is an indicator of neutral pH.
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Coliform bacteria have traditionally been used as indicators of water quality.
Academic text (2006) -
Cough is both an important physiologic component of lung defense and a cardinal indicator of disease.
Academic text (2009) -
Boron has been demonstrated to be a good indicator of septic tank inputs to groundwater.
Academic text (2008) -
In 1989, evaluating enterococcus bacteria as the primary indicator organism showed a correlation between elevated enterococcus levels and rainfall.
Academic text (2009) -
Chloride and sodium concentrations were measured as indicators of infiltration of roadway runoff containing residual salt from winter road maintenance.
Academic text (2008) -
The color change of the solution served as a reliable indicator of the chemical reaction's completion.
-
In chemistry class, we use phenolphthalein as an indicator to determine the acidity of various liquids.
Compounds
- Specialized
3
6.8
A number that changes before the whole economy does to show future trends
- Specialized
A chemical dye that changes color to show when a solid forms in a liquid
- Specialized
A chemical that changes color to show if a liquid is acidic or basic
- Specialized
A tool that sets the time when an artillery shell will explode
- Specialized
An electrode that responds to changes in dissolved chemicals without changing the liquid
- Specialized
A chemical that changes color when a solution gains or loses electrons
How Indicative
Surface Forms
Morphology
Etymology
Indicator comes from the Latin word indicare, which means 'to point out', and is like the word index; so a chemical indicator is something that 'points out' a reaction, for example by changing colour to show what is happening.