barometer
Other forms: barometers
A barometer is a device that measures atmospheric pressure. Barometers help meteorologists figure out what the weather is going to be like.
Sure, it's technically a weather man's tool — but you can use barometer more generally to describe anything that can be used to forecast or measure something else. The stock market is a barometer for economic health. Your grades are a barometer of how you're doing in school. For the President, a national poll is a barometer of political success. These kinds of barometers tell which way the wind is blowing — just not literally.
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an instrument that measures atmospheric pressuretypes:barographa recording barometer; automatically records on paper the variations in atmospheric pressuremercury barometerbarometer that shows pressure by the height of a column of mercuryweatherglassa simple barometer for indicating changes in atmospheric pressuretype of:measuring device, measuring instrument, measuring systeminstrument that shows the extent or amount or quantity or degree of something
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Vocabulary lists containing barometer
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Physical geography will be a breeze once you master this list of terms related to Earth's physical features. You'll review climate and weather, landforms and bodies of water, biomes and ecosystems, and the geological structure of the Earth — and that's just the tip of the iceberg!