Science / Chemistry / Acid-Base Indicator: A weak acid that has acid and base forms with sharply different colors. Changes in pH around the acid's pKa are 'indicated' by color changes.
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Indicator Noun Synonyms: pointer, needle, gauge, meter, display
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Science / Chemistry / Indicator: A substance that undergoes an sharp, easily observable change when conditions in its solutions change. See, for example, acid-base indicator and redox indicator. MORE
Science / Weather / Plan Position Indicator: Also known as a PPI Scope, it is a radar indicator scope displaying range and azimuth of targets in polar coordinates. MORE
Technology / Radar / Plan Position Indicator (PPI): The face or screen of a cathode-ray tube on which radar images appear in correct relation to each other, so that the scope face presents a chart like representation of the area about the antenna, the MORE
Entertainment / Bowling / Pindicator: A display board that shows the bowler which pins remain standing after the first ball. MORE
Business / Finance / Overbought-Oversold Indicator: An indicator that attempts to define when prices have moved too far and too fast in either direction and thus are vulnerable to reaction. MORE
Business / Finance / Monetary Indicators: Economic indicators of the effects of monetary policy, such as the condition of the credit market. MORE