Barometer Definition

bə-rŏmĭ-tər
barometers
noun
An instrument for measuring atmospheric pressure, used especially in weather forecasting.
American Heritage
An instrument for measuring atmospheric pressure, esp. an aneroid barometer or an evacuated and graduated glass tube (mercury barometer) in which a column of mercury rises or falls as the pressure of the atmosphere increases or decreases: barometers are used in forecasting changes in the weather or finding height above sea level.
Webster's New World
Something that registers or responds to fluctuations; an indicator.
Opinion polls serve as a barometer of the public mood.
American Heritage
Anything that reflects or indicates change.
The stock market is a barometer of business.
Webster's New World
The definition of a barometer is a device that measures the pressure of the atmosphere as an aid to predicting weather.
A device that shows the pressure of the air is an example of a barometer.
YourDictionary
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other
An instrument for measuring atmospheric pressure. Barometers are used in determining height above sea level and in forecasting the weather. The two primary types of barometers are the aneroid and the mercury barometer.
American Heritage Science
In the financial markets, an important economic statistic or stock index that indicates market direction or sentiment. Some of the more frequently cited barometers are the NASDAQ Composite Index, the Dow Jones Industrial Average, the U.S. unemployment rate, the rate of inflation, and the consumer price index.
Webster's New World Finance

Other Word Forms of Barometer

Noun

Singular:
barometer
Plural:
barometers

Origin of Barometer

  • From Ancient Greek βάρος (baros, “weight”) +‎ -meter.

    From Wiktionary

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